Extrinsic 13723-1

{
  "heartbeat": {
    "blockNumber": 13722,
    "sessionIndex": 228,
    "validatorsLen": 1,
    "authorityIndex": 0
  },
  "signature": "0x1664a25361cfa63a81b21c40aaca444006b8bbf3868bcf85dc94d06cf8fc683ee4971e19ba1e045bb9ea00152b386d85749ee7fcc9939403a6a235d9e8c8588a"
}