{
  "status": "error",
  "message": "参数超过长度限制:35",
  "code": "isv.PARAM_LENGTH_LIMIT",
  "biz_id": "",
  "request_id": "2890EA5B-0793-50BF-8344-A0CEC853C383",
  "phone": "15920791357",
  "timestamp": 1777272770,
  "content_preview": "P2413模型评估：R²=0.890，MAE=6.72，RMSE=18.0，MAPE=46%，轻微过...",
  "template_code": "SMS_504880161",
  "sign_name": "驰启智能科技有限公司",
  "template_param": {
    "message": "P2413模型评估：R²=0.890，MAE=6.72，RMSE=18.0，MAPE=46%，轻微过拟合"
  }
}