Extrinsic 9739-1

{
  "heartbeat": {
    "blockNumber": 9737,
    "sessionIndex": 162,
    "validatorsLen": 4,
    "authorityIndex": 1
  },
  "signature": "0x6e82f3f10a97b72cbdb8373a10cfe5cb3489cdf4e7ca66809482a6e79c5b5f31323d42c454db201111c8e8b8ce372cbaafd3fb9bd42f9ea736b900b8bb680188"
}