Extrinsic 143019-1

{
  "heartbeat": {
    "blockNumber": 143017,
    "sessionIndex": 2383,
    "validatorsLen": 4,
    "authorityIndex": 0
  },
  "signature": "0x4851c46e6489b3c5af72f7ba84b8fc9f3acef392ce2b216842dd7b1d0a06f32665ee5ad1764cb6992b1ce105b8f7e4d81c9f42c9572c0c99eb30adc9cab34782"
}