Staked (index_topic_1address user, uint256 amount, uint256 term)
[topic 0]:0x1449c6dd7851abc30abf37f57715f492010519147cc2652fbc38202c18a6ee90
[topic 2]:0x0000000000000000000000000000000000000000000000056bc75e2d63100000
[topic 3]:0x0000000000000000000000000000000000000000000000000de0b6b3a7640000
0x