So Binance is an exchange, and has nothing to do with making signed messages.

To do what you are trying to do, your best bet is to search "Stake your address here." in the google search the forum has available.

It'll take you to a thread where they will assist you in making a bitcoin signed message, while also providing you with proof that you truly own the wallet in your bitcointalk.org profile. It's awesome.

Good luck!

<3