STAKED (index_topic_1address user, uint256 amount, uint256 at)
[topic 0]:0x99b6f4b247a06a3dbcda8d2244b818e254005608c2455221a00383939a119e7c
0x000000000000000000000000757c200ed7beb49163630dcd986dd94f8837a6740000000000000000000000000000000000000000000000000de0b6b3a76400000000000000000000000000000000000000000000000000000000000000000000