Grant id authorizing the Personal Server read.
OptionalnetworkX402 network advertised by the Personal Server challenge.
OptionalpaymentPayment nonce requested by the 402 challenge.
OptionalaccessData-access receipt carrying a signature for the gateway to verify.
Asset address owed (zero address = native VANA).
Amount owed, as a decimal base-unit string (preserves uint256 precision).
The full, unmodified 402 response body.
Escrow operation discriminator.
Grant id settled by the escrow payment.
A validated legacy grant payment challenge.