Hope I did it right! Signed a message using Electrum. 
Code:
-----BEGIN BITCOIN SIGNED MESSAGE-----
This is uelque from bitcointalk.org and today is 2018.03.03
-----BEGIN SIGNATURE-----
16Uh382NnXkCP1w7qGuEL6T9hufHKpbRcP
IJRlldK4NzLjoDS0rIcTDgLIJBZaOnS9s3jUxZb4tOAMMU2AAAnIpz3LAMPLMb6+W1mm6tL7DsOyW15tulY3664=
-----END BITCOIN SIGNED MESSAGE-----
This is uelque from bitcointalk.org and today is 2018.03.03
-----BEGIN SIGNATURE-----
16Uh382NnXkCP1w7qGuEL6T9hufHKpbRcP
IJRlldK4NzLjoDS0rIcTDgLIJBZaOnS9s3jUxZb4tOAMMU2AAAnIpz3LAMPLMb6+W1mm6tL7DsOyW15tulY3664=
-----END BITCOIN SIGNED MESSAGE-----
Could verify it, well done.