Signs an arbitrary message with the given Solana account.
WARNING:* Never sign a message that you didn't generate, as it can be an arbitrary transaction. For example, it might send all of your funds to an attacker.
Optional
Signs an arbitrary message with the given Solana account.
WARNING:* Never sign a message that you didn't generate, as it can be an arbitrary transaction. For example, it might send all of your funds to an attacker.