-----BEGIN BITCOIN SIGNED MESSAGE-----
I am Abdullah500.I can sign a message.
-----BEGIN SIGNATURE-----
1HZwkjkeaoZfTSaJxDw6aKkxp45agDiEzN
GwbjocghfW/RT1FqKxrNtVLQ24ncIchQ2TAdcGuOs5A/s0x902JbEcTPLB1PO5A8xh7LuldEJiKuc0uM5J/lQlM=
-----END BITCOIN SIGNED MESSAGE-----
Hey Og, this message was signed from an address that's being use by Brainwallet for demo purposes. There are many other members who staked this address but it's only used once here. You can check hosseinimr93's investigation
https://bitcointalk.org/index.php?topic=5300127.0