Extrinsic 109220-1

{
  "heartbeat": {
    "blockNumber": 109219,
    "sessionIndex": 1820,
    "validatorsLen": 1,
    "authorityIndex": 0
  },
  "signature": "0x4a5028a5203b4e9c074d6a0814456edc86c920ea89e3090e77b8eef9d516346fa4f54b778d964c663b5ad26141650850e320a99e222fd96e5e58a19b7c50a588"
}