SELECT 
  video_path, 
  thumbnail_path 
FROM 
  cscart_product_video 
WHERE 
  product_id = 3772

Query time 0.00058

JSON explain

{
  "query_block": {
    "select_id": 1,
    "nested_loop": [
      {
        "table": {
          "table_name": "cscart_product_video",
          "access_type": "ALL",
          "rows": 17,
          "filtered": 100,
          "attached_condition": "cscart_product_video.product_id = 3772"
        }
      }
    ]
  }
}