Extrinsic 88479-1

{
  "heartbeat": {
    "blockNumber": 88478,
    "sessionIndex": 1474,
    "validatorsLen": 1,
    "authorityIndex": 0
  },
  "signature": "0xc8429cb6e5eda7c2b7360d560efa5396e463b974828f53b84537d2e6c818455315b9ccad1eb3dcf1f91e069437b28d2aec8e66b3993e99492ac7b4ce2a541c87"
}