Hello, I was wondering if there is any "in-chat" sub notification for whenever someone subs on gamewisp.com I've been searching all over mIRC forums and can't find anything, if I can have help on this it would be sooo much and greatly appreciated, thank you

You probably would be hooking up with their API.

Documentation on that should be found here.
https://gamewisp.readme.io/docs

I'm not going to lie since I'm new to mIRC, I'm very very confused on how this works ....