Extrinsic 48820-1

{
  "heartbeat": {
    "blockNumber": 48818,
    "sessionIndex": 813,
    "validatorsLen": 4,
    "authorityIndex": 0
  },
  "signature": "0xe8150c0e59e56ca17f6610f09bf5a2041ddab6503ff8069c671c3a8fdb8e9e6555569439e2a5d9d397924ff98de9c97784cc0d38f7cd33f28a5906284295448c"
}