Extrinsic 6701-1

{
  "heartbeat": {
    "blockNumber": 6699,
    "sessionIndex": 111,
    "validatorsLen": 4,
    "authorityIndex": 1
  },
  "signature": "0xcaedc20bac19d1b4f0b9ce060bdd363d7ded97e22ebece40944d25ae46852d366f10252fc82490053c5deafe5f17eb5c12ef722cf736f502bb33b37905b4ac85"
}