Extrinsic 12070-1

{
  "heartbeat": {
    "blockNumber": 12069,
    "sessionIndex": 201,
    "validatorsLen": 4,
    "authorityIndex": 2
  },
  "signature": "0x3e4259bbff5d67bc022f9b58e8b429ae53b3f025f75fd4a6e1f1d519a3035603dc5ea25198928e51bb807ab083798ee1f28817ef4e4ee4258882c028541c0b88"
}