{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "16782",
    "entityType": "User",
    "nonce": "0x96d68d1facc8f78265a9b544e550ab3d223036e92b69ee0fa2a508fa1271b31b",
    "signature": "0x89ce3d8b4b51fcc0c835fb313e34a8e19bc4e93441f2a4f38485d4fef8082588634e52bbb0eeec2e18a7f0d6021784ff40d85951cb59b199edeb27b010c0fff31c",
    "signer": "0xA27B00F57fC7B3E81c4d7C4919aCec97E1fCf667",
    "userId": "329513359"
  }
}