Extrinsic 39507-1

{
  "heartbeat": {
    "blockNumber": 39506,
    "sessionIndex": 658,
    "validatorsLen": 4,
    "authorityIndex": 0
  },
  "signature": "0xeeba4c111a92f94129d35a5b75d0982b0052f773a4c3d720c7eecf6b29598b37e65a66f42e803130f4aac069e9692878cc4f7e606c3ef90792a328e086283783"
}