{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "923551697",
    "entityType": "User",
    "nonce": "0x7bebe0d7bb6c9869fbbf0459530a8e88f1536b232cdde3a353c755900315545d",
    "signature": "0xff901c8a55c92f59f0c7063d7fb513bc395f9c79fdfa7ee3b41f13c2cd1d357729d43df6ad11e20b6f94b7eb471e5e73c5a4c7db1eaf99a541a7396bcf8621c31b",
    "signer": "0x33c702d534707f8Cada5DdD521C5900827973f1D",
    "userId": "5642"
  }
}