Bought (index_topic_1address fromAsset, index_topic_2address toAsset, uint256 amountSold, uint256 receivedAmount)
[topic 0]:0xbf77fd13a39d14dc0da779342c14105c38d9a5d0c60f2caa22f5fd1d5525416d
0x00000000000000000000000000000000000000000000000011b791691e5d9aec00000000000000000000000000000000000000000000000000000000fb5a5040