Extrinsic 27198-1

{
  "heartbeat": {
    "blockNumber": 27197,
    "sessionIndex": 453,
    "validatorsLen": 1,
    "authorityIndex": 0
  },
  "signature": "0x0c8d9753cac1149e4a68c8bb4c47c8c068ef258e97b255167c01bf4b61228a722d46858077e77af69dc52109f703b38fd88d94d136dcadfbc16e970b342cb683"
}