Extrinsic 47321-1

{
  "heartbeat": {
    "blockNumber": 47319,
    "sessionIndex": 788,
    "validatorsLen": 4,
    "authorityIndex": 1
  },
  "signature": "0xda0181bf11739e592fc9f228d72c3271316305fc08a1816611549e1cc6416a6da15777ca9418f05db389ef4a012982b5daba6476283a368c7b248cb915d26781"
}