Extrinsic 144341-1

{
  "heartbeat": {
    "blockNumber": 144339,
    "sessionIndex": 2405,
    "validatorsLen": 4,
    "authorityIndex": 0
  },
  "signature": "0xa4713ea7fc877cf27625bfdcf5adb49877e53b67c902261642b6a86611ef354763870344ac9a4ac66f079116318a61ad387b1d1759aab72e8469e76337a2dd8b"
}