result = {'success': False, 'message': ''}
try:
	mgr = ProductManager()
	r = await mgr.subscribe_product(
		product_id=params_kw.get('product_id', ''),
		user_id=params_kw.get('user_id', ''),
		user_org_id=params_kw.get('user_org_id', ''),
		start_date=params_kw.get('start_date', ''),
		end_date=params_kw.get('end_date', '')
	)
	result = r
except Exception as e:
	result['message'] = str(e)
	debug(format_exc())
return json.dumps(result, ensure_ascii=False, default=str)