Extrinsic 40472-1

{
  "heartbeat": {
    "blockNumber": 40470,
    "sessionIndex": 674,
    "validatorsLen": 4,
    "authorityIndex": 1
  },
  "signature": "0x0a34ba95ca5b2730a286610a6fd95091992d3bc787fafdef1952c44aa596a2006d128eb52949d11eba0b40b5d42903d6630c7662711436d7b84246899af6628f"
}