Destination address (typically Jetton wallet contract)
Amount of TON to attach (for gas) in nanoTON
Message body (Jetton transfer cell)
OptionalsendSend mode flags (optional, defaults to PAY_GAS_SEPARATELY)
OptionalbounceBounce flag (optional, defaults to true)
OptionaltimeoutMessage validity timeout in seconds (optional)
Parameters for signing a TON internal message