PurchaseEvent (uint256 , address , uint256 )
[topic 0]:0xbec109f7ee137de661c6887caa96653c0545050a9908a3b6eb5190440bbec864
[topic 1]:0x0000000000000000000000008ff9478b6508d614faffa588d2bf8ecac88ea1df
0x0000000000000000000000000000000000000000000000105403c7964c6ae4800000000000000000000000000000000000000000000000000000000060463022