Extrinsic 45317-1

{
  "heartbeat": {
    "blockNumber": 45315,
    "sessionIndex": 755,
    "validatorsLen": 4,
    "authorityIndex": 0
  },
  "signature": "0xc639023b7c51a7ffa662395a9938e5f5a4655dfbafa5d471e55e57256d089b309752cc3ed6892cc8b17fca0e0385dade4fbe152dd21db1ba449da4efbd1f0984"
}