OP_RETURN
data(utf-8) - Ownerless address with special meaning allows to show potential donations for doing desired action.
It's up to actor to recognize social requests when people are really ready to pay.
See memo.sv/topic/hmwydashow raw data(hex) - OP_RETURN 4f776e65726c65737320616464726573732077697468207370656369616c206d65616e696e6720616c6c6f777320746f2073686f7720706f74656e7469616c20646f6e6174696f6e7320666f7220646f696e67206465736972656420616374696f6e2e0a4974277320757020746f206163746f7220746f207265636f676e697a6520736f6369616c207265717565737473207768656e2070656f706c6520617265207265616c6c7920726561647920746f207061792e0a536565206d656d6f2e73762f746f7069632f686d77796461