BuyTierTokens (index_topic_1address investor, index_topic_2uint8 tier, uint256 priceInCoins, uint256 boughtAmount, uint256 timestamp)
[topic 0]:0x7fb6706de0e8b08a1bafe616588969a65a9844c5c4ee05d02a4b4437c30f8561
[topic 2]:0x0000000000000000000000000000000000000000000000000000000000000001
0x000000000000000000000000000000000000000000000000a2fe80c09b1912e600000000000000000000000000000000000000000000000000000000000000050000000000000000000000000000000000000000000000000000000061ecb38c