A girl’s WeChat signature is: You came to visit my circle of friends again to see if you like me.

This is her WeChat signature but not what she said to you.

So, this is just a signature and does not refer to a specific person.

My signature is "Give me the money"

Purely arbitrary,

Of course if she changes her WeChat signature as frequently as her QQ personalized signature, It’s possible that it was really meant for someone to see