UserParticipates (address _user, uint256 _tokenId, uint256 _totalCost, uint256 userTotalTokens)
[topic 0]:0x2bfa5a156760eb9cb8286434e9f2eb96c4653c056c0ac620a81236e67ccafa32
0x000000000000000000000000e2efd9d06f66dbc8fd16576334826ce2370718b900000000000000000000000000000000847be4453096473d82331905f2cb4954000000000000000000000000000000000000000000002a5a058fc295ed000000000000000000000000000000000000000000000000002a5a058fc295ed000000