Extrinsic 48941-1

{
  "heartbeat": {
    "blockNumber": 48940,
    "sessionIndex": 815,
    "validatorsLen": 4,
    "authorityIndex": 3
  },
  "signature": "0x908eb0817f2affaa9621578ea7203249eef7f980ec35edbeb5de96e68bdebd2f20f0cbc147bc6269498e5869db890d6335d929596dfce6639ad055b30f496f80"
}