#!/usr/bin/perl
use warnings;
use strict;
use feature qw{ say };

use HTML::TableExtract;

my $te = 'HTML::TableExtract'->new;
$te->parse(do { local $/; <> =~ s/\\"/"/gr });
for my $table ($te->tables) {
    for my $row ($table->rows) {
        chomp @$row;
        say "@$row[0, 1]";
    }
}
[download]

Envvironment Last Updated
bus00eqa 25-Apr-2020
bus00eqz 29-Feb-2020
den00pyy 25-Apr-2020
[download]

Or, similarly:

#!/usr/bin/perl
use warnings;
use strict;
use feature qw{ say };

use XML::LibXML;

my $dom = 'XML::LibXML'->load_html(
    string => do { local $/; <> =~ s/\\"/"/gr });

for my $row ($dom->findnodes('//table/tbody/tr')) {
    my @cells = $row->findnodes('td | th');
    say join ' ', map $_->textContent, @cells[0, 1];
}
[download]

I ran rest api to get that html table data in the json format. With that response, i am trying manipulate the html table row values.

curl -H "Authorization: Basic XXX"  "https://confluence.domainname.com/confluence/rest/api/content/1873691329?expand=body.storage" | python -mjson.tool

"I ran rest api to get that html table data in the json format."

You didn't show this, you just provided some messy html. The code below prints out data matching your criteria

#!/usr/bin/perl
use strict;
use warnings;
use Mojo::DOM;
use feature 'say';

my $html = <DATA>;

my $dom = Mojo::DOM->new( $html );
foreach my $row ( $dom->at('tr > th > a[href^=bus00eqa/')->parent->par
+ent ){
  foreach my $e ( $row->find('th')->each ){
    say $e->all_text;
  }
};
__DATA__
<table class=\"relative-table wrapped\" style=\"width: 100.0%;\"><colg
+roup><col style=\"\" /><col style=\"width: 5.3799%;\" /><col style=\"
+width: 3.34865%;\" /><col style=\"width: 5.17157%;\" /><col style=\"w
+idth: 5.22365%;\" /><col style=\"width: 9.49449%;\" /><col style=\"wi
+dth: 20.0674%;\" /><col style=\"\" /><col style=\"width: 5.90074%;\" 
+/><col style=\"width: 3.45282%;\" /><col style=\"width: 15.1716%;\" /
+><col style=\"width: 5.08824%;\" /></colgroup><tbody><tr><td>Envviron
+ment</td><td colspan=\"1\">Last Updated</td><td colspan=\"1\">RPD</td
+><td colspan=\"1\">Usage</td><td>Status</td><td>ADW</td><td>Schema</t
+d><td colspan=\"1\">Wallet</td><td colspan=\"1\">FA Source</td><td>OA
+C</td><td>OA4F-GA-BITBUCKET-REPO</td><td>Comments</td></tr><tr><th cl
+ass=\"highlight-green\" colspan=\"1\" data-highlight-colour=\"green\"
+><a href=\"https://confluence.domaincorp.com/confluence/display/FAW/d
+en00pyy\" title=\"\" rel=\"nofollow\">bus00eqa</a></th><th class=\"hi
+ghlight-green\" colspan=\"1\" data-highlight-colour=\"green\">25-Apr-
+2020</th><th class=\"highlight-green\" colspan=\"1\" data-highlight-c
+olour=\"green\">5.6</th><th class=\"highlight-green\" colspan=\"1\" d
+ata-highlight-colour=\"green\"><pre title=\"\"><span style=\"color: r
+gb(29,28,29);\"><span style=\"color: rgb(23,43,77);text-decoration: n
+one;\" title=\"\"><span style=\"color: rgb(23,43,77);text-decoration:
+ none;\" title=\"\"><span style=\"color: rgb(29,28,29);\">CRM<br /></
+span></span></span></span></pre></th><th class=\"highlight-green\" co
+lspan=\"1\" data-highlight-colour=\"green\">Available</th><th class=\
+"highlight-green\" colspan=\"1\" data-highlight-colour=\"green\"><spa
+n title=\"\">oax487389368_low</span><br title=\"\" /><strong title=\"
+\"> </strong></th><th class=\"highlight-green\" colspan=\"1\" data-hi
+ghlight-colour=\"green\"><span style=\"color: rgb(23,43,77);text-deco
+ration: none;\" title=\"\"><span style=\"color: rgb(23,43,77);text-de
+coration: none;\" title=\"\"><span style=\"color: rgb(29,28,29);\"><s
+pan style=\"color: rgb(0,51,102);\" title=\"\"><span style=\"color: r
+gb(29,28,29);\"><span style=\"color: rgb(23,43,77);text-decoration: n
+one;\" title=\"\"><span style=\"color: rgb(29,28,29);\"><span><span s
+tyle=\"color: rgb(23,43,77);text-decoration: none;\" title=\"\"><span
+ style=\"color: rgb(29,28,29);\"><span>OAX$OAC/U20O2LRDjg9MN9QSySJov9
+2LF7CrZ3<br /><br /></span></span></span></span></span></span></span>
+</span><br /></span></span></span></th><th class=\"highlight-green\" 
+colspan=\"1\" data-highlight-colour=\"green\"><a class=\"external-lin
+k\" href=\"http://slc08ulx.us.domain.com:8000/integ1/test3dp3jan31ext
+ernalWallet.zip\" title=\"\" rel=\"nofollow\">http://slc08ulx.us.doma
+in.com:8000/integ1/test3dp3jan31externalWallet.zip</a></th><th class=
+\"highlight-green\" colspan=\"1\" data-highlight-colour=\"green\">FA5
+.0-20.01</th><th class=\"highlight-green\" colspan=\"1\" data-highlig
+ht-colour=\"green\">5.0</th><th class=\"highlight-green\" colspan=\"1
+\" data-highlight-colour=\"green\"><a title=\"\" rel=\"nofollow\" cla
+ss=\"external-link\" href=\"http://bus00cyb.us.domain.com:8080/job/OA
+4F-3.1-BITBUCKET-REPO/25/\">http://bus00cyb.us.domain.com:8080/job/OA
+4F-3.1-BITBUCKET-REPO/25/</a></th><th class=\"highlight-green\" colsp
+an=\"1\" data-highlight-colour=\"green\">NONE</th></tr><tr><th class=
+\"highlight-green\" data-highlight-colour=\"green\"><a rel=\"nofollow
+\" href=\"https://confluence.domaincorp.com/confluence/display/FAW/bu
+s00eqz\" title=\"\">bus00eqz</a></th><th class=\"highlight-green\" co
+lspan=\"1\" data-highlight-colour=\"green\">29-Feb-2020</th><th class
+=\"highlight-green\" colspan=\"1\" data-highlight-colour=\"green\">3.
+1</th><th class=\"highlight-green\" colspan=\"1\" data-highlight-colo
+ur=\"green\"><p title=\"\">HCM</p></th><th class=\"highlight-green\" 
+data-highlight-colour=\"green\">Available</th><th class=\"highlight-g
+reen\" data-highlight-colour=\"green\"><span title=\"\">dbdoublecore<
+/span></th><th class=\"highlight-green\" data-highlight-colour=\"gree
+n\"><span style=\"color: rgb(23,43,77);text-decoration: none;\" title
+=\"\"><span style=\"color: rgb(29,28,29);\"><span><span style=\"color
+: rgb(23,43,77);text-decoration: none;\" title=\"\"><span style=\"col
+or: rgb(29,28,29);\"><span>C5.632920_OAX$DW/Welcome12345<br /></span>
+</span></span></span></span></span></th><th class=\"highlight-green\"
+ colspan=\"1\" data-highlight-colour=\"green\"><a title=\"\" class=\"
+external-link\" href=\"http://slc08ulx.us.domain.com:8000/wallets/faw
+dev/Wallet_oax487389368_low1.zip\" rel=\"nofollow\">http://slc08ulx.u
+s.domain.com:8000/wallets/fawdev/Wallet_oax487389368_low1.zip</a></th
+><th class=\"highlight-green\" colspan=\"1\" data-highlight-colour=\"
+green\">FA5.0-20.01</th><th class=\"highlight-green\" data-highlight-
+colour=\"green\">5.0</th><th class=\"highlight-green\" data-highlight
+-colour=\"green\"><a class=\"external-link\" rel=\"nofollow\" href=\"
+http://bus00cyb.us.domain.com:8080/job/OA4F-3.1-BITBUCKET-REPO/10/\">
+http://bus00cyb.us.domain.com:8080/job/OA4F-3.1-BITBUCKET-REPO/10/</a
+></th><th class=\"highlight-green\" data-highlight-colour=\"green\">N
+ONE</th></tr><tr><td class=\"highlight-green\" title=\"Background col
+our : Green\" colspan=\"1\" data-highlight-colour=\"green\"><p title=
+\"\"><strong><a rel=\"nofollow\" href=\"https://confluence.domaincorp
+.com/confluence/display/FAW/bus00eqz\" title=\"\">den00pyy</a></stron
+g></p><p title=\"\"><br /></p></td><td class=\"highlight-green\" titl
+e=\"Background colour : Green\" colspan=\"1\" data-highlight-colour=\
+"green\"><strong>25-Apr-2020</strong></td><td class=\"highlight-green
+\" title=\"Background colour : Green\" colspan=\"1\" data-highlight-c
+olour=\"green\"><strong>5.6</strong></td><td class=\"highlight-green\
+" title=\"Background colour : Green\" colspan=\"1\" data-highlight-co
+lour=\"green\"><strong>FPHDEV</strong></td><td class=\"highlight-gree
+n\" title=\"Background colour : Green\" colspan=\"1\" data-highlight-
+colour=\"green\"><strong>Available</strong></td><td class=\"highlight
+-green\" title=\"Background colour : Green\" colspan=\"1\" data-highl
+ight-colour=\"green\"><strong>oax487389368_low1</strong></td><td clas
+s=\"highlight-green\" title=\"Background colour : Green\" colspan=\"1
+\" data-highlight-colour=\"green\"><strong>test$username/Welcome12345
+</strong></td><td class=\"highlight-green\" title=\"Background colour
+ : Green\" colspan=\"1\" data-highlight-colour=\"green\"><strong>http
+://slc08ulx.us.domain.com:8000/integ1/test3dp3jan31externalWallet.zip
+</strong></td><td class=\"highlight-green\" title=\"Background colour
+ : Green\" colspan=\"1\" data-highlight-colour=\"green\"><p title=\"\
+"><strong>FA5.6-20.01</strong></p></td><td class=\"highlight-green\" 
+title=\"Background colour : Green\" colspan=\"1\" data-highlight-colo
+ur=\"green\"><strong>5.0</strong></td><td class=\"highlight-green\" t
+itle=\"Background colour : Green\" colspan=\"1\" data-highlight-colou
+r=\"green\"><strong><a rel=\"nofollow\" href=\"http://bus00cyb.us.dom
+ain.com:8080/job/OA4F-3.1-BITBUCKET-REPO/10/\" title=\"\">http://bus0
+0cyb.us.domain.com:8080/job/OA4F-3.1-BITBUCKET-REPO/25/</a></strong><
+/td><td class=\"highlight-green\" title=\"Background colour : Green\"
+ colspan=\"1\" data-highlight-colour=\"green\"><strong>NONE</strong><
+/td></tr></tbody></table>
[download]

As far as manipulating the DOM goes see Re: Batch remove URLs or Super Search for more examples. If your data is coming from an online source just use Mojo::UserAgent to get it directly.

Update: A further explanation, using Mojo::UserAgent you can grab your data, and access the resulting DOM (illustrated above by reading in the HTML you provided, stored within __DATA__) like so:

use Mojo::UserAgent;

my $ua =  Mojo::UserAgent->new;

my $url = 'https://target/url/or/endpoint';

my $dom = $ua->get( $url )->res->dom; # if the result is HTML
my $dom = $ua->get( $url )->res->json; #if the result is JSON
[download]

The documentation shows examples of authentication. With the method above you can select the row you wish to edit, rather than being hard coded this selector could be something you prompt for. Some small additional steps are required if you want to change both the href attribute and the link text, but it's not a big deal. say $dom->content will dump the updated DOM, you can simply save this to file or send it on to another endpoint, whatever your end goal is. Like I said, Super Search will find lots of examples. Some more to get you started:

• substitution in textual area of HTML file
• Match text from txt to html

By 'the next occurring 12 strings' do you mean:

I mean including bus00eqa string. The expected output should be like as follows:

bus00eqa 25-Apr-2020 5.6 CRM Available oax487389368_low OAX$OAC/U20O2LRDjg9MN9QSySJov92LF7CrZ3 http://slc08ulx.us.domain.com:8000/integ1/test3dp3jan31externalWallet.zip FA5.0-20.01 5.0 http://bus00cyb.us.domain.com:8080/job/OA4F-3.1-BITBUCKET-REPO/25/ NONE