Extrinsic 23446-1

{
  "heartbeat": {
    "blockNumber": 23445,
    "sessionIndex": 390,
    "validatorsLen": 1,
    "authorityIndex": 0
  },
  "signature": "0x64986ae9c27072b69dabfad0643c973a46d80296d767e8e15d807a37a0fa7b0ccc088299dcc25fc64c690afa3972223fa5bf0bf3f5acbc88a904539790b3e881"
}