onTokenSell (index_topic_1address customerAddress, uint256 tokensBurned, uint256 ethereumEarned)
[topic 0]:0xc4823739c5787d2ca17e404aa47d5569ae71dfb49cbf21b3f6152ed238a31139
0x0000000000000000000000000000000000000000000000a0a2f80b136f8813e000000000000000000000000000000000000000000000000000950e2be7b39f82