Extrinsic 17234-1

{
  "heartbeat": {
    "blockNumber": 17233,
    "sessionIndex": 287,
    "validatorsLen": 4,
    "authorityIndex": 2
  },
  "signature": "0x5a6cb0bdc94fc188da7f6caadf43614fad3bf8fdbba8a7bf5a91fb2f6866df2bfaea78367033e048c3332606e170f916c20af363cae445be389eca174fc1018f"
}