0x414bf389?0x414bf389 is the function selector for exactInputSingle((address,address,uint24,address,uint256,uint256,uint256,uint160)). Uniswap V3 single-hop swap.
When a transaction's data begins with 0x414bf389, it is calling exactInputSingle. The selector is the first four bytes of the keccak-256 hash of the signature exactInputSingle((address,address,uint24,address,uint256,uint256,uint256,uint160)), which is how wallets and explorers work out which function a payload is for.