Not exactly sure what's the intent and the purpose of your message and I'd go with what I would request to be signed typically. The message would typically be:
"This Bitcoin Message is signed on 2024-08-22 at 1500 Hours UTC+1. This message proves that I, AzizLeBG is in control of the funds and the address as of this time to facilitate the transaction between XX and XX on 2024-08-23."
In other words, the message should be very specific so that it can't be used for some other purpose or by someone else. If you are asking someone to provide a signed message, it is a good practice to require them to include specific text provided by you that identifies the current transaction. That prevents the signer from reusing a signature. The signer should be allowed to include text of their choice for the same reason.
Also, common mistake is to believe that a signature proves that a statement is true or accurate. Anyone can sign a statement claiming to be Satoshi.