Extrinsic 43398-1

{
  "heartbeat": {
    "blockNumber": 43397,
    "sessionIndex": 723,
    "validatorsLen": 4,
    "authorityIndex": 1
  },
  "signature": "0xc6aeb736972b4f272d3b2549fa51537dd310a894333fb399ef99cccd974cec3339e669fde4fca9eb00f53ed8410c985df08a91296e7d91a55d79deb51c5b8984"
}