Extrinsic 48705-1

{
  "heartbeat": {
    "blockNumber": 48704,
    "sessionIndex": 811,
    "validatorsLen": 4,
    "authorityIndex": 3
  },
  "signature": "0x60718912314072d61e17d4b56338898df36f66ee1a4ad9091646843edec4630fbeab5983fec018dfdef3cbec47d71211402536b2957f901282941986f025cb8c"
}