onTokenSell (index_topic_1address customerAddress, uint256 tokensBurned, uint256 ethereumEarned)
[topic 0]:0xc4823739c5787d2ca17e404aa47d5569ae71dfb49cbf21b3f6152ed238a31139
0x000000000000000000000000000000000000000000000a968163f43947d757b8000000000000000000000000000000000000000000000000acf2859549763cfa