Extrinsic 138348-1

{
  "heartbeat": {
    "blockNumber": 138347,
    "sessionIndex": 2305,
    "validatorsLen": 1,
    "authorityIndex": 0
  },
  "signature": "0x4e8c8063fcd186c10da20255bfa27499982e5c78921622d9a0b4825c9a761847524c1ced42790823dfe7919510aab22fb6f143248cd81cd472e39ed94b3ae98f"
}