WithdrawalQueued (uint256 nonce, address withdrawer, bytes32[] withdrawalRoots)
[topic 0]:0xb4a86b70f2287279f5f8f45d48929f811389449b556cdd7f03aa8e0cc738dfbd
0x000000000000000000000000000000000000000000000000000000000000001500000000000000000000000007b96cf1183c9bff2e43acf0e547a8c4e442947300000000000000000000000000000000000000000000000000000000000000600000000000000000000000000000000000000000000000000000000000000002c56e317630806a25ebe23807fad23532a4f5f8fee74d008bebbf859fb0c1a9c0730d171d3ee67de012e7c722c26396cbb6bca07dfad9324e27683febcf0f1738