TokensPurchased (index_topic_1address purchaser, uint256 amountUSD, uint256 tokens)
[topic 0]:0x8fafebcaf9d154343dad25669bfa277f4fbacd7ac6b0c4fed522580e040a0f33
0x000000000000000000000000000000000000000000000000000000000f3536170000000000000000000000000000000000000000000002b392c0822fc23de000