After you paste the code, change the parameter value ";_=..." to random (used in that system).
Examples:
Adfox: %random%
https://top-fwz1.mail.ru/tracker?id=0000000;e=RG%3A/trg-pixel-0000000-0000000000000;_=%random% Adriver: ![rnd]
https://top-fwz1.mail.ru/tracker?id=0000000;e=RG%3A/trg-pixel-0000000-0000000000000;_=![rnd] myTarget: {{random}} or %random%
https://top-fwz1.mail.ru/tracker?id=0000000;e=RG%3A/trg-pixel-0000000-0000000000000;_={{random}}