/api/v2/{coin}/wallet/{walletId}/token/approval/buildcoinstringRequiredbtc>= 1 characterswalletIdstringRequired59cd72485007a239fb00282ed480da1f^[0-9a-f]{32}$>= 1 characterstokenName string required >= 1 charactersamount string >= 1 charactersgasLimit number gasPrice number eip1559 object maxFeePerGas number required maxPriorityFeePerGas number required txHex string required txInfo object required amount string required contractAddress string required spender string required recipients array[object] required address string required amount string required data string required eip1559 object maxFeePerGas string required maxPriorityFeePerGas string required nextContractSequenceId number required name string context object required error string required requestId string required