Extrinsic 48391-1

{
  "heartbeat": {
    "blockNumber": 48390,
    "sessionIndex": 806,
    "validatorsLen": 1,
    "authorityIndex": 0
  },
  "signature": "0x480c17759e8b1a289a064e6c17833ff38de2bec602711a3c8989b7b479be0a311c63fb4d7d714a3ac6e2e7b8ee18f64709793042c2bd81a5aa0e8cef56874987"
}