Extrinsic 1360-1

{
  "heartbeat": {
    "blockNumber": 1359,
    "sessionIndex": 22,
    "validatorsLen": 1,
    "authorityIndex": 0
  },
  "signature": "0xc2ceb8e9b6fb2683857b56e17cd3640f67642e7e4042170f55617bd2d3afe975cecb00cea037209ce4c58c096ba1bf41e831e7fa5697bfec4e540f543e27d98a"
}