Create Flash Price Campaign

Example request

{
  "flash_price_campaign": {
    "start_at": "2022-01-01 00:00:00",
    "end_at": "2022-01-02 00:00:00",
    "title": "2022-01-02 00:00:00",
    "price_sets": [
      {
        "product_id": "610258858c5acd00452fcf8d",
        "price": 23.16,
        "price_sale": 20.28,
        "price_details": [
          {
            "variation_key": "610258858c5acd00452fcf8d",
            "price": 996.12,
            "price_sale": 11.11
          }
        ]
      }
    ]
  }
}