Update (index_topic_1uint32 homeDomain, index_topic_2bytes32 oldRoot, index_topic_3bytes32 newRoot, bytes signature)
[topic 0]:0x608828ad904a0c9250c09004ba7226efb08f35a5c815bb3f76b5a8a271cd08b2
[topic 1]:0x00000000000000000000000000000000000000000000000000000000706f6c79
[topic 2]:0xf3e70f95d387583c6b1447336970ca67bba5b7f74542e4ef2e9144d70ee3f9aa
[topic 3]:0x455f04b906bf82846c36124b922a420af8481164743fd23b71f5bebac57317ac
0x00000000000000000000000000000000000000000000000000000000000000200000000000000000000000000000000000000000000000000000000000000041ba28886ea414169ec16c8e67ed0e849c60e23cf8d04d2f610cd70175dc1fed25028ae9f62cdfd724651e86896528642f540f715a2fbee489ec5f79c676840a471b00000000000000000000000000000000000000000000000000000000000000