Base64 encoded signed external message (BOC format) Contains the complete Jetton transfer message ready for broadcast The message transfers maxAmount to the facilitator's holding address
Transfer authorization metadata for verification Provides human-readable and verifiable parameters
Unique nonce for replay protection (hex string) Separate from the wallet seqno - used by the t402 protocol
TON upto payment payload (V2)
Contains a pre-signed transfer message to the facilitator's holding address. The facilitator will broadcast the transfer, then forward settleAmount to payTo and refund (maxAmount - settleAmount) back to the client.