Extrinsic 17051-1

{
  "heartbeat": {
    "blockNumber": 17050,
    "sessionIndex": 284,
    "validatorsLen": 4,
    "authorityIndex": 0
  },
  "signature": "0x3452d81e1074e1e34dd04f42895b8291ec5ab744c8ad9ffc762a455aab8f8b07c90e4a511a587031a7287108f10eca8d21ed9f6039ce43e71f2368eb4a01858d"
}