Extrinsic 22209-2

{
  "heartbeat": {
    "blockNumber": 22207,
    "sessionIndex": 370,
    "validatorsLen": 4,
    "authorityIndex": 0
  },
  "signature": "0xa2c1b08021bb309c1befed5c341ad43966a8414896aa503ddef4d75f3916993fd1f427d8ec2ea006af093706dc71d86129dd6617225702b207e1f7efe3b7ee82"
}