Extrinsic 34304-1

{
  "heartbeat": {
    "blockNumber": 34303,
    "sessionIndex": 571,
    "validatorsLen": 4,
    "authorityIndex": 1
  },
  "signature": "0x1c060ecb353175027fa7d47056c265518ef38a4a84503a90a283ef897dc5ab6ac23768be3e09737ca8dddf76e8beebd6985cf3927961ceed145188998e0a408a"
}