PurchaseEvent (uint256 , address , uint256 )
[topic 0]:0xbec109f7ee137de661c6887caa96653c0545050a9908a3b6eb5190440bbec864
[topic 1]:0x000000000000000000000000faea6322a2a0b3465e21f76de6613abb1a9583ac
0x00000000000000000000000000000000000000000000003224d34a506027e00000000000000000000000000000000000000000000000000000000000606dbed1