Buy (index_topic_1address account, uint256 assetAmount, uint256 payoutAmount, uint256 duration)
[topic 0]:0xbeae048c6d270d9469f86cf6e8fedda3c60ad770f16c24c9fc131c8e9a09101d
0x0000000000000000000000009cc5e894089f5fb03d610fac8b248fd5857cbc390000000000000000000000000000000000000000000000000ea1ccbe53d8d1e4000000000000000000000000000000000000000000000086ac485b0d3505b97700000000000000000000000000000000000000000000000003782dace9d90000