{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1497323",
    "entityType": "User",
    "nonce": "0x0488098180f99a5a9ede43f6e07b635be86d7dc0a16481e0973288f9200155b2",
    "signature": "0xc57fa5741c96c33d2d8dd47420378259a692568cdce141cf93ca884f581735dc6c70cd61de87860cd8bace380dc454e60870e365c06a875f0fddde96311579171c",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}