{
"domain": "string",
"api_key": "string",
"auth_timestamp": 0,
"auth_signature": "string",
"filter_name": "string",
"filter_date_modified": "string",
"page": 0,
"sort": "string",
"order": "string",
"limit": 0
}
{
"error": [
"string"
],
"total": 0,
"categories": [
{
"promotion_category_id": 0,
"name": "string",
"date_added": "string",
"date_modified": "string",
"items": {}
}
]
}