Unstaked (uint256 activityId, index_topic_2address user, index_topic_3address token, uint256 amount)
[topic 0]:0x88567e6595ad345e5250569a2c8d8a50ed9db24198350fa907e42d73faf012d5
[topic 1]:0x000000000000000000000000c4bfb6595344cf4c689faffda3172a07fbbb7e21
0x00000000000000000000000000000000000000000000000000000000000000020000000000000000000000000000000000000000000000056bc75e2d63100000