Your new specification makes little or no sense. I think you want to print the hash data for the users specified in @array4. Here is my attempt at that. 
foreach my $id (@array4) {
    print "User $id\n";
    if (!exists $hash{$id}) {
        print "    not logged in\n\n";
        next;
    }
    foreach my $net (keys %{$hash{$id}}) {
        print "    $net\n";
        local $" = "\n        ";
        print "         @{$hash{$id}{$net}}\n";
    }
    print "\n";
}

[download]
OUTPUT:

User 900000001
    Network1
         Login

User 900000002
    Network1
         2019-11-07T20:31:10.000Z
        2021-02-19T13:47:25.000Z
        2021-03-10T13:58:50.000Z

User 900000007
    Network1
         2021-03-10T17:11:24.000Z
        2021-02-18T08:34:58.000Z
        2021-01-25T17:19:44.000Z

User 900000009
    not logged in

User 900000010
    not logged in

User 900000011
    not logged in

User 900000012
    not logged in

User 500000008
    Network1
         2021-03-10T17:11:24.000Z
        2021-03-11T17:12:42.000Z
    Network2
         Not Used
    Network3
         Not Used

[download]
Bill

In reply to Re^3: How i can create hash of arrays of hashes from my 3 arrays? by BillKSmith
in thread How i can create hash of arrays of hashes from my 3 arrays? by chandantul

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