Extrinsic 7963-1

{
  "heartbeat": {
    "blockNumber": 7962,
    "sessionIndex": 132,
    "validatorsLen": 1,
    "authorityIndex": 0
  },
  "signature": "0xc8b0a7df5704d7b4c3596ed8f53422e291ba7e342e54f7868655accf3e52e011d302369814d19be6bbb5d860bdddcf2e4eb8929fd4ca5739b1d5151f0f3e8c81"
}