Swapped (index_topic_1address user, uint256 pfxAmount, uint256 usdtAmount)
[topic 0]:0x3a9a9f34f5831e9c8ecb66ab3aa308b2ff31eaca434615f6c9cadc656a9af71c
0x000000000000000000000000b2e518b841b0cb7124ddadcbb882bbced4337cbf0000000000000000000000000000000000000000000000e1e01da9631f9aaaab000000000000000000000000000000000000000000002c1dc5cb155c2c355566