PurchaseEvent (uint256 , address , uint256 )
[topic 0]:0xbec109f7ee137de661c6887caa96653c0545050a9908a3b6eb5190440bbec864
[topic 1]:0x000000000000000000000000ea1369356677096923b8e7cdc9cf127539d284bd
0x0000000000000000000000000000000000000000000000008ac6c811796dc0000000000000000000000000000000000000000000000000000000000060423c06