TokensExchanged (index_topic_1address stableSwapPool, address fromToken, address toToken, uint256 fromAmount, uint256 toAmount)
[topic 0]:0xe065ccf331737789c42691e445bb680198682dadf51e4de1f877c48ef40a54e5
0x0000000000000000000000004c9edd5852cd905f086c759e8383e09bff1e68b3000000000000000000000000a0b86991c6218b36c1d19d4a2e9eb0ce3606eb48000000000000000000000000000000000000000000000002b64ceef2cf65ee1f0000000000000000000000000000000000000000000000000000000002fbc9a1