{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "390576",
    "entityType": "User",
    "nonce": "0x5d835971fc988251f0a318dfb46f54cf2bc76a0c686860e689e6eb48e67e00ff",
    "signature": "0xec5b712329994050c5e663825c6cd501666c37e27c3769dab4141684726b975e583cf86af5ac3fb1741376a715f1fa7ba5885695acc2c54b221579ac0df36e621c",
    "signer": "0x793bbEFbb3Cf1e6529B90296e502145aCcCDE8d6",
    "userId": "838777725"
  }
}