Extrinsic 88715-1

{
  "heartbeat": {
    "blockNumber": 88714,
    "sessionIndex": 1478,
    "validatorsLen": 1,
    "authorityIndex": 0
  },
  "signature": "0xb27719f1f557d6bd75f69fea2f34eb0f3bf1bc76b30c9f4bf23982c573e3c83e074d15987430a16c3a68100b2236c2f238695f2eafb119ff689f9bc9c37e6d8e"
}