Unable to figure out how to use the incoming badge code in an if statement

[CoarsePiglet]

Hello
I'm working on a project to use a badge reader to open a door in my house.
Unfortunately I cannot figure out how to use the receiving badge codes in an if statement, so I can toggle a relay if it matches the number of my badge.
I'm just using the Example code, because that works great, and my project is really simple anyway.
Is there any chance I could get some help with this?
Thank you in advance