OperatorRegisteredToNetwork (address operator, uint256 shares)
[topic 0]:0x16c1a2a8195923d655fe84191b37c746f4385a5c32c038578958b29f52daa1a8
0x00000000000000000000000005b539edfdc00313fdce03a9ecae9cb9dfa85b900000000000000000000000000000000000000000000000000000000000000000