{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "63149",
    "entityType": "User",
    "nonce": "0x9531b3fdece1858a3341251429db8d33554ea91f3ef26dfb7b71b1804a69eaa2",
    "signature": "0xd14b73bf575fb3d9f9717f4e5e793f57c30bc93f0853b13583a5dd3853fadec820c53307ac9a73379ad29a36cb1922a1faba59a6b734f5694055e67b4cf9e5551b",
    "signer": "0x040629E31a68119093b9a0111257C8449c2f8e10",
    "userId": "20"
  }
}