{
  "success": true,
  "data": {
    "id": "usr_abc123",
    "email": "user@example.com",
    "subscription": {
      "plan": "premium",
      "status": "active",
      "expiresAt": "2027-01-15T00:00:00Z"
    }
  }
}

{
  "success": false,
  "error": {
    "code": "VALIDATION_ERROR",
    "message": "The request body contains invalid fields.",
    "details": {
      "field": "email",
      "constraint": "required",
      "received": null
    }
  }
}

{
  "success": false,
  "error": {
    "code": "TOKEN_EXPIRED",
    "message": "Your access token has expired. Please refresh your token or re-authenticate.",
    "details": {
      "expiredAt": "2026-02-08T11:30:00Z",
      "tokenType": "access"
    }
  }
}

{
  "success": false,
  "error": {
    "code": "WEAK_PASSWORD",
    "message": "Password does not meet strength requirements.",
    "details": {
      "requirements": [
        "Minimum 8 characters",
        "At least one uppercase letter",
        "At least one number",
        "At least one special character"
      ],
      "failedChecks": ["uppercase", "special_character"]
    }
  }
}

{
  "success": false,
  "error": {
    "code": "DEVICE_LIMIT_REACHED",
    "message": "You have reached the maximum number of devices for your plan.",
    "details": {
      "currentDevices": 5,
      "maxDevices": 5,
      "plan": "standard",
      "upgradeUrl": "https://orbvpn.com/pricing"
    }
  }
}

{
  "success": false,
  "error": {
    "code": "SUBSCRIPTION_EXPIRED",
    "message": "Your subscription has expired. Please renew to continue using this feature.",
    "details": {
      "expiredAt": "2026-01-31T23:59:59Z",
      "plan": "premium",
      "renewUrl": "https://orbvpn.com/dashboard/subscription"
    }
  }
}