Extrinsic 23303-1

{
  "heartbeat": {
    "blockNumber": 23302,
    "sessionIndex": 388,
    "validatorsLen": 1,
    "authorityIndex": 0
  },
  "signature": "0xecdb2add77925fafbb46cdc43fdafb7cc706c54678ccd58c47ab1c929311e02392915bc032415a5310a438410b33587f4674612df264c9db834a89a85b57c080"
}