SELECT 
  * 
FROM 
  cscart_mb_salvage_cases 
WHERE 
  auction_product_id IN (
    19965, 19966, 19967, 19968, 19969, 19970, 
    19971, 19972, 19973, 19974, 19975, 
    19976, 19977, 19978, 19979, 19980
  ) 
  OR sale_product_id IN (
    19965, 19966, 19967, 19968, 19969, 19970, 
    19971, 19972, 19973, 19974, 19975, 
    19976, 19977, 19978, 19979, 19980
  ) 
ORDER BY 
  updated_at DESC, 
  case_id DESC

Query time 0.00034

JSON explain

{
  "query_block": {
    "select_id": 1,
    "read_sorted_file": {
      "filesort": {
        "sort_key": "cscart_mb_salvage_cases.updated_at desc, cscart_mb_salvage_cases.case_id desc",
        "table": {
          "table_name": "cscart_mb_salvage_cases",
          "access_type": "ALL",
          "rows": 56,
          "filtered": 100,
          "attached_condition": "cscart_mb_salvage_cases.auction_product_id in (19965,19966,19967,19968,19969,19970,19971,19972,19973,19974,19975,19976,19977,19978,19979,19980) or cscart_mb_salvage_cases.sale_product_id in (19965,19966,19967,19968,19969,19970,19971,19972,19973,19974,19975,19976,19977,19978,19979,19980)"
        }
      }
    }
  }
}