OperatorRegistered (uint256 index, address operator, uint256[4] blsKey)
[topic 0]:0x331f973b64838ebff40e989e4e441a3e3296615cce84c871a24c1ce7e821b4ba
[topic 1]:0x000000000000000000000000c257eeef1aa0ae752ef36e436f53156c3ea9216f
0x000000000000000000000000000000000000000000000000000000000000000319a4615e1c0c30bbde01566744a51c12499444bfe808445c1c2a3b8ebeb1f8c0296bbf4ccfb3df0f4294414f2def0f38505c78113573dc63cafdc58fa8bbf11c16ce8a6e3b6648299e8a6b55365b31990953789d7ed7e98875a16585c3f857d301e4e9b6efad0f99b904a176ca08734523089262641bcb370709577d13d54a79