Extrinsic 7248-1

{
  "heartbeat": {
    "blockNumber": 7247,
    "sessionIndex": 120,
    "validatorsLen": 1,
    "authorityIndex": 0
  },
  "signature": "0xc8911b3cf56a4880c4789839a7356cdb5c5e4d2ba1cde12d116690c86fe8785dfb1629bd00b74a142062c7c597330be499b11320342e9ac847e64225d814b989"
}