Extrinsic 11859-1

{
  "heartbeat": {
    "blockNumber": 11857,
    "sessionIndex": 197,
    "validatorsLen": 4,
    "authorityIndex": 0
  },
  "signature": "0xc0349c39f8f04960e7f43658ab3fd4ba55affab8f2164481d8b7ea40b7aab41d67c8c19a292a6e5f34f9218046173a6becfa7afdc84f186ceaaf1eabb3181a8b"
}