{
  "jsonrpc": "2.0",
  "method": "author_extrinsicUpdate",
  "params": {
    "result": {
      "finalized": "0xc465b92a72b1d20918d64cd4effa70c2bb58b53a3f8c24c3ac8fd8f465f059b4"
    },
    "subscription": 9
  }
}