UpdateExchangePrice (uint256 newExchangePrice, uint256 newRevenue)
[topic 0]:0x83d2ad38a3d31bbc70811535dd8943b0140df344c23e6e167ee1ca32f9a1a459
0x0000000000000000000000000000000000000000000000000e027a72f6ce22370000000000000000000000000000000000000000000000000000000000000000