Extrinsic 68864-1

{
  "heartbeat": {
    "blockNumber": 68863,
    "sessionIndex": 1147,
    "validatorsLen": 1,
    "authorityIndex": 0
  },
  "signature": "0x545b8f1dcb0f80bd61dd388dbd0aca509c79390cc9595c9772030c15bab25c4255ad5e50d6201d9ed4b30ec0e156232542c231cdb42534ad80d6c4339f2e3988"
}