Extrinsic 40960-1

{
  "heartbeat": {
    "blockNumber": 40958,
    "sessionIndex": 682,
    "validatorsLen": 4,
    "authorityIndex": 1
  },
  "signature": "0xecd980f9c9ab1f02a0778deb8dd837df07b1b7019d4c0a323b5c328b88cede071eff1c1a359b8e31e312011013b8265cae81de8c472f7ddfd102eded293c7081"
}