curl  -H "Authorization: PASSWORD" -H "Content-Type: application/json" -d '{"message":"Test message"}'  https://myurl.url.url/api/v1/actions/message/

##</code><code>##

use LWP::UserAgent;
use strict;
my $url=" https://myurl.url.url/api/v1/actions/message";
my $ua = LWP::UserAgent->new;
my $response = $ua->post($url,
    'Content-type' => 'application/json',
    'Authorization' => 'PASSWORD',
    'data' => {"message":"Test message"}
);

print $response->as_string;