Extrinsic 72519-1

{
  "heartbeat": {
    "blockNumber": 72518,
    "sessionIndex": 1208,
    "validatorsLen": 1,
    "authorityIndex": 0
  },
  "signature": "0xa0817fe438889ab27bf68094b9221305c46ebb0e6d55abf5405b7b165a9f1163254a51f9f5bdbeb5cc1ea53421ea35e0b91e908ff156a6a001ce82d63c7c7f81"
}