{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "305386",
    "entityType": "User",
    "nonce": "0x8186b82b55025c91f6fd8ae9b524e33f3d35b7a85fe0a197867b3d70acb56764",
    "signature": "0x6a910d268a9ac9676796c35c28c3d2239e879c17d587279afd4c2702ad0c8d6c5a384c5bf47c7ba7d40d186c9be54735042fb36a6b75ab6fbc2210ffefebd1f31c",
    "signer": "0xE795526f098824a87a94C79d58a4299b51b20a3c",
    "userId": "837713671"
  }
}