Extrinsic 12228-1

{
  "heartbeat": {
    "blockNumber": 12227,
    "sessionIndex": 203,
    "validatorsLen": 1,
    "authorityIndex": 0
  },
  "signature": "0x601a7c60395663f4cdff4da3b9e5bc7748a7c40345a204920576651e508d7a5923940b8a8de005cd84a87b88c627a68fad3515a0fea60520bc8feff34a3d0288"
}