Extrinsic 6224-1

{
  "heartbeat": {
    "blockNumber": 6223,
    "sessionIndex": 103,
    "validatorsLen": 1,
    "authorityIndex": 0
  },
  "signature": "0xace552c26624b3039afebd66cc362dec2ac3bf669c640ce6a3361381cf013b36984c05767c0becb2d33dc3068453f3af7fbb60d0f9988c6c8214f73469d4c48a"
}