Extrinsic 7235-1

{
  "heartbeat": {
    "blockNumber": 7234,
    "sessionIndex": 120,
    "validatorsLen": 4,
    "authorityIndex": 3
  },
  "signature": "0xaca8ba33af8caae0e5a7930eee9f6e629781d69975994349c716f5f403e1b6388ff4665f1c23115712f2560507d53d3a6e9e846b361943354d65130d9c72dc87"
}