OptionalbytesBase64 UTF-8 bytes of the Terms and Conditions message (see
UserData.createTermsAndConditionsMessage), signed once by walletAddress
and cached for the session. Sending this cached signature is all the gas
pool needs; it replaces the old per-tx SPONSOR_GAS payload.
OptionalsignaturewalletAddress's signature over bytes (the cached T&C signature).
Wallet address to use for gas pool sponsorship. Must be the connected wallet: af-fe now verifies the sponsor and refuses a request naming any other address with error 2034 before it reaches the pool.
Configuration for gas pool sponsorship on perpetuals transactions.
When provided, the transaction will include a gas pool sponsor rebate step that debits the specified wallet's gas pool.