Extrinsic 74806-1

{
  "heartbeat": {
    "blockNumber": 74804,
    "sessionIndex": 1246,
    "validatorsLen": 1,
    "authorityIndex": 0
  },
  "signature": "0x6889140c3fc7945da8839d298433287c70f380a9f7e050f097bde4048c1bc238b6f3a05d46a34d5dd12cd4c484aa09929a22e1fa9af486fcf82e0a348fbca980"
}