Extrinsic 44983-1

{
  "heartbeat": {
    "blockNumber": 44981,
    "sessionIndex": 749,
    "validatorsLen": 4,
    "authorityIndex": 3
  },
  "signature": "0x4268876f091ced637738e72b87969bb6e116752928e67bad5b632eea34583270bea6240c83bc88f1633625ad1f7af2ad0cfadc167262729f6a3c14574390eb80"
}