On a basic level:
>>> ROUTER_ADDRESS = '0x3fC91A3afd70395Cd496C647d5a6CC9D4B2b7FAD'
>>> ROUTER_ABI = '''
... [{"inputs":[{"components":[{"internalType":"address","name":"permit2","type":"address"},{"inte rnalType":"address","name":"weth9","type":"address"},{"internalType":"address","name":"seaportV1_5 ","type":"address"},{"internalType":"address","name":"seaportV1_4","type":"address"},{"internalTyp e":"address","name":"openseaConduit","type":"address"},{"internalType":"address","name":"nftxZap", "type":"address"},{"internalType":"address","name":"x2y2","type":"address"},{"internalType":"addre ss","name":"foundation","type":"address"},{"internalType":"address","name":"sudoswap","type":"addr ess"},{"internalType":"address","name":"elementMarket","type":"address"},{"internalType":"address" ,"name":"nft20Zap","type":"address"},{"internalType":"address","name":"cryptopunks","type":"addres s"},{"internalType":"address","name":"looksRareV2","type":"address"},{"internalType":"address","na me":"routerRewardsDistributor","type":"address"},{"internalType":"address","name":"looksRareReward sDistributor","type":"address"},{"internalType":"address","name":"looksRareToken","type":"address" },{"internalType":"address","name":"v2Factory","type":"address"},{"internalType":"address","name": "v3Factory","type":"address"},{"internalType":"bytes32","name":"pairInitCodeHash","type":"bytes32" },{"internalType":"bytes32","name":"poolInitCodeHash","type":"bytes32"}],"internalType":"struct Ro uterParameters","name":"params","type":"tuple"}],"stateMutability":"nonpayable","type":"constructo r"},{"inputs":[],"name":"BalanceTooLow","type":"error"},{"inputs":[],"name":"BuyPunkFailed","type" :"error"},{"inputs":[],"name":"ContractLocked","type":"error"},{"inputs":[],"name":"ETHNotAccepted ","type":"error"},{"inputs":[{"internalType":"uint256","name":"commandIndex","type":"uint256"},{"i nternalType":"bytes","name":"message","type":"bytes"}],"name":"ExecutionFailed","type":"error"},{" inputs":[],"name":"FromAddressIsNotOwner","type":"error"},{"inputs":[],"name":"InsufficientETH","t ype":"error"},{"inputs":[],"name":"InsufficientToken","type":"error"},{"inputs":[],"name":"Invalid Bips","type":"error"},{"inputs":[{"internalType":"uint256","name":"commandType","type":"uint256"}] ,"name":"InvalidCommandType","type":"error"},{"inputs":[],"name":"InvalidOwnerERC1155","type":"err or"},{"inputs":[],"name":"InvalidOwnerERC721","type":"error"},{"inputs":[],"name":"InvalidPath","t ype":"error"},{"inputs":[],"name":"InvalidReserves","type":"error"},{"inputs":[],"name":"InvalidSp ender","type":"error"},{"inputs":[],"name":"LengthMismatch","type":"error"},{"inputs":[],"name":"S liceOutOfBounds","type":"error"},{"inputs":[],"name":"TransactionDeadlinePassed","type":"error"},{ "inputs":[],"name":"UnableToClaim","type":"error"},{"inputs":[],"name":"UnsafeCast","type":"error" },{"inputs":[],"name":"V2InvalidPath","type":"error"},{"inputs":[],"name":"V2TooLittleReceived","t ype":"error"},{"inputs":[],"name":"V2TooMuchRequested","type":"error"},{"inputs":[],"name":"V3Inva lidAmountOut","type":"error"},{"inputs":[],"name":"V3InvalidCaller","type":"error"},{"inputs":[]," name":"V3InvalidSwap","type":"error"},{"inputs":[],"name":"V3TooLittleReceived","type":"error"},{" inputs":[],"name":"V3TooMuchRequested","type":"error"},{"anonymous":false,"inputs":[{"indexed":fal se,"internalType":"uint256","name":"amount","type":"uint256"}],"name":"RewardsSent","type":"event" },{"inputs":[{"internalType":"bytes","name":"looksRareClaim","type":"bytes"}],"name":"collectRewar ds","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"byt es","name":"commands","type":"bytes"},{"internalType":"bytes[]","name":"inputs","type":"bytes[]"}] ,"name":"execute","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"interna lType":"bytes","name":"commands","type":"bytes"},{"internalType":"bytes[]","name":"inputs","type": "bytes[]"},{"internalType":"uint256","name":"deadline","type":"uint256"}],"name":"execute","output s":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"address","name":" payable","type":"receive"}],"stateMutability":"nonpayable","type":"function"},{"stateMutability":"
... '''
>>>
>>> router = w3.eth.contract(address=ROUTER_ADDRESS, abi=ROUTER_ABI)
>>> tx = w3.eth.get_transaction('0xa6fd1bad03bc9ac90c0848d41b60825880509a7d528f3340f22e87a011e99b6 c')
>>> print(f'[+] INPUT: {router.decode_function_input(tx["input"])}')
[+] INPUT: (<Function execute(bytes,bytes[],uint256)>, {'commands': b'\x0b\x08', 'inputs': [b'\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x01\x15\x1c\x964{\x00\x00', b"\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x01\x15\x1c\x964{\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\\bU\xb5\xa3.\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xa0\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xc0*\xaa9\xb2#\xfe\x8d\n\x0e\\O'\xea\xd9\x08<ul\xc2\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xfdAN9\x15_\x91\xe9DC\xa9\xfe\x97\xe8VV\x9d\x0f^\xec"], 'deadline': 1693228895})
>>>
To get what you want, which I'm guessing is the decoded call data from the encoded calls:
>>> res[1]['commands'].hex()
'0b08'
>>> res[1]['inputs'][0].hex() #deposit eth -> weth
'000000000000000000000000000000000000000000000000000000000000000200000000000000000000000000000000000000000000000001151c96347b0000'
>>> res[1]['inputs'][1].hex() #swap
'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'
You will need some understanding of the called commands.
>>> decode(['uint256'], res[1]["inputs"][0][-32:])
(78000000000000000,)
Decode manually or use other contract abi to recursively decode just as we did with execute.
The usual sigs are not present there so cannot use the 4byte directory to look them up, but with some understanding of the swaps, an ability to read through the router, or even the motivation to go through the logs. You will be able to see what is decoded and called.
