Verify Message
verifymessage "address" "signature" "message"
Verify a signed message. Returns true or false.
verifymessage "Gt5evdv3Ufnv3WDvb1Ey2oqAW2EpMre3n" "IJTjS9oma8WLM+EsXVnESR12jONwjMkfR3I10LyMcy4YimE0cQnvtAcQyim3lJPQ58Q6IADitNAe+2Kc274AqLu=" "hello world 1"
true
See signmessage for creating a message signature.