The approval object which contains the necessary fields to submit an approval for this transaction. Null if the fromToken is the native token or the transaction is a native token wrap / unwrap.
fromToken
The hash for the approval according to EIP-712. Computing the hash of the eip712 field should match the value of this field.
eip712
^0x[a-fA-F0-9]{64}$
The approval object which contains the necessary fields to submit an approval for this transaction. Null if the
fromToken
is the native token or the transaction is a native token wrap / unwrap.