Extrinsic 88303-1

{
  "heartbeat": {
    "blockNumber": 88302,
    "sessionIndex": 1471,
    "validatorsLen": 1,
    "authorityIndex": 0
  },
  "signature": "0x94093292f7049b9f56f75b75d1c1cfa5e003a1c2112ca1acbfc536e950e2aa7eb490fe1cec76c3a056c17fa1e8cd8e4af04fa976eb35d3f9cc68d47ab789d284"
}