Extrinsic 34004-1

{
  "heartbeat": {
    "blockNumber": 34002,
    "sessionIndex": 566,
    "validatorsLen": 4,
    "authorityIndex": 2
  },
  "signature": "0x4e2fe792f0f67042615de0c8138442e2f297176de45748822ea0bc4ff229b42a9957b7f8f054ef1cd02b213a95f0d701a7700ba675dddc046857c9395d789f82"
}