Stake (address sender, uint256 cycle, uint256 amount)
[topic 0]:0x5af417134f72a9d41143ace85b0a26dce6f550f894f2cbc1eeee8810603d91b6
0x0000000000000000000000008421000932a791a9df7a9a4985d11eefbf72373100000000000000000000000000000000000000000000000000000000000000010000000000000000000000000000000000000000000000000000955fa9d8f600