SELECT 
  cscart_images.*, 
  cscart_images_links.*, 
  cscart_common_descriptions.description AS alt, 
  cscart_images.image_id AS images_image_id 
FROM 
  cscart_images_links 
  LEFT JOIN cscart_images ON cscart_images_links.detailed_id = cscart_images.image_id 
  LEFT JOIN cscart_common_descriptions ON cscart_common_descriptions.object_id = cscart_images.image_id 
  AND cscart_common_descriptions.object_holder = 'images' 
  AND cscart_common_descriptions.lang_code = 'en' 
WHERE 
  cscart_images_links.object_type = 'product' 
  AND cscart_images_links.type = 'M' 
  AND cscart_images_links.object_id IN (
    31318, 50698, 50699, 50680, 50681, 50682, 
    50683, 50684, 50685, 6069, 50678, 50676, 
    50677, 50675, 50673, 50674, 50270, 
    50269, 50268, 50267, 50266, 50265, 
    50264, 50524, 50346, 50345, 50519, 
    50518, 50517, 50645, 50612, 50343, 
    50342, 50341, 50344, 50640, 50641, 
    50605, 50652, 50650, 50653, 50630, 
    50244, 50245, 50246, 50351, 50350, 
    50347, 50621, 50622, 50602, 50626, 
    50603, 50313, 50326
  ) 
ORDER BY 
  cscart_images_links.position, 
  cscart_images_links.pair_id

Query time 0.00198

JSON explain

{
  "query_block": {
    "select_id": 1,
    "nested_loop": [
      {
        "read_sorted_file": {
          "filesort": {
            "sort_key": "cscart_images_links.position, cscart_images_links.pair_id",
            "table": {
              "table_name": "cscart_images_links",
              "access_type": "ALL",
              "possible_keys": ["object_id"],
              "rows": 110,
              "filtered": 50,
              "attached_condition": "cscart_images_links.object_type = 'product' and cscart_images_links.`type` = 'M' and cscart_images_links.object_id in (31318,50698,50699,50680,50681,50682,50683,50684,50685,6069,50678,50676,50677,50675,50673,50674,50270,50269,50268,50267,50266,50265,50264,50524,50346,50345,50519,50518,50517,50645,50612,50343,50342,50341,50344,50640,50641,50605,50652,50650,50653,50630,50244,50245,50246,50351,50350,50347,50621,50622,50602,50626,50603,50313,50326)"
            }
          }
        }
      },
      {
        "table": {
          "table_name": "cscart_images",
          "access_type": "eq_ref",
          "possible_keys": ["PRIMARY"],
          "key": "PRIMARY",
          "key_length": "4",
          "used_key_parts": ["image_id"],
          "ref": ["dev_db.cscart_images_links.detailed_id"],
          "rows": 1,
          "filtered": 100
        }
      },
      {
        "table": {
          "table_name": "cscart_common_descriptions",
          "access_type": "eq_ref",
          "possible_keys": ["PRIMARY"],
          "key": "PRIMARY",
          "key_length": "107",
          "used_key_parts": ["object_id", "lang_code", "object_holder"],
          "ref": ["dev_db.cscart_images.image_id", "const", "const"],
          "rows": 1,
          "filtered": 100,
          "attached_condition": "trigcond(cscart_common_descriptions.object_id = cscart_images.image_id and cscart_common_descriptions.object_holder = 'images' and cscart_common_descriptions.lang_code = 'en' and trigcond(cscart_images.image_id is not null))"
        }
      }
    ]
  }
}