TokensBought (index_topic_1address buyer, uint256 tokenAmount, uint256 currencyAmount)
[topic 0]:0x8442948036198f1146d3a63c3db355d7e0295c2cc5676c755990445da4fdc1c9
0x000000000000000000000000000000000000000000000000002386f26fc1000000000000000000000000000000000000000000000000000000000000000001cf