{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "2044",
    "entityType": "User",
    "nonce": "0x88a5793d80271daa0f3b3f7a78953724ea33250535f7f45b0e21c03c880c81ac",
    "signature": "0x9b625159e1b28b3664fde2fe9f2ea21b7c57eefc6aace65d84612b7465f6b35366547849874b22f50ff6a166602bd1aeffc8acf1b85cbbb4e8056d7711f4fbfd1c",
    "signer": "0xaF260D56498a2d61b204aBc5CAdCbEc98465d11b",
    "userId": "219894195"
  }
}