Address: bc1qwpspuz5qwxnl8rxrgxrpftnl8jvgr62au8luwe
Message: I’m onindo and I can sign a message.
Signature: H+DZ9jSdFu4XufVCevL/bnLECE7L+HXjeEWz+B4FHaL9d07e/Q5xrv8ay8yJfB1NJ3VIyq5qP7b4oA3woY+ajZE=
You need to check again as its showing wrong signature.

Maybe the last
dot of the Message will be removed. and where you tried to verify the message? In a wallet like Electrum? or in online sign message verifier sites? I am asking this because the online verifier site basically does not verify the address start with
bc1 But you can follow this post to verify SegWit address in brainwallet
How to verify SegWit signature with Brainwallet ?I have tried this way and got the result is verified if I remove the
DOT in the message texts. I used
https://tools.bitcoin.com/verify-message/
According to your link you only need to place the message and signature to verify it's signed (but that doesn't guarentee it's the correct wallet unless you do some digging deeper)