The sign method calculates an Ethereum specific signature with: sign(keccak256(“Ethereum Signed Message: ” + len(message) + message))).
eth_sign:params[0]: The address.params[1]: Data which hash to sign.“0xb1092cb5b23c2aa55e5b5787729c6be812509376de99a52bea2b41e5a5f8601c5641e74d01e4493c17bf1ef8b179c49362b2c721222128d58422a539310c6ecd1b”.