Extrinsic 1361-1

{
  "heartbeat": {
    "blockNumber": 1359,
    "sessionIndex": 22,
    "validatorsLen": 4,
    "authorityIndex": 1
  },
  "signature": "0x5e6687f38389adc442d0eaa6c435aad41ba1b0486addffd7e7b820469644a82df0a21a1b33e07e37225884b98e3203f57691397f9bbe02cef97659f92eca8f88"
}