Extrinsic 51070-1

{
  "heartbeat": {
    "blockNumber": 51069,
    "sessionIndex": 851,
    "validatorsLen": 1,
    "authorityIndex": 0
  },
  "signature": "0x2c8078154529366e9fa8371ec5c7610809d7bf5ffcfb268e768e051f4813627ede449a33f02a6ebb66f62a6a050ff23e7c2b5b540e5a9045574a93085856de83"
}