{
  "endpoint_type": "text2video",
  "payload": {
    "model_name": "kling-v1",
    "prompt": "A calm sunrise over the ocean, cinematic, realistic",
    "duration": "3",
    "mode": "std",
    "aspect_ratio": "16:9",
    "external_task_id": "smoke_text_3"
  },
  "response": {
    "error": "HTTP Error 400: Bad Request",
    "status_code": 400,
    "response_body": "{\"code\":1201,\"message\":\"duration value '3' is invalid\",\"request_id\":\"addb0505-5923-409e-8325-b9722f93f077\"}",
    "category": "malformed"
  }
}