DocumentUpdated (bytes32 name, string uri, bytes32 documentHash)
[topic 0]:0xb4c22d60cd550a815744f04e3ff5278bf19684565ee00e2b084041b6024bd6f6
[topic 1]:0x546f6b656e204c696e6b2041677265656d656e74000000000000000000000000
0x000000000000000000000000000000000000000000000000000000000000004021569bc134038e937bdbe41faf6007da8b06de5f7e2a65906372eb0c9978b5f30000000000000000000000000000000000000000000000000000000000000027687474703a2f2f6c6f63616c686f73743a333030302f3078342f6f66666572696e67732f30783900000000000000000000000000000000000000000000000000