InitialBuyExecuted (uint256 etherUsed, uint256 tokenProceeds)
[topic 0]:0x84d453f2dc4bd1e164d877dbfd0314fcaeb8ace05e0cb57fa83bea9cdef850ef
0x0000000000000000000000000000000000000000000000007ce66c50e2840000000000000000000000000000000000000000000000a5d7b7691c6a5f30302c70