Swap (address inputCurrency, address outputCurrency, uint256 inputAmount, uint256 outputAmount, uint256 fee, uint256 feeRate)
[topic 0]:0xb3e2773606abfd36b5bd91394b3a54d1398336c65005baf7bf7a05efeffaf75b
0x000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000008d56974dd5c5dbd000000000000000000000000000000000000000000000000000000000001b6450000000000000000000000000000000000000000000000000000000000000000