SELECT 
  cscart_ab__vendor_stickers.* 
FROM 
  cscart_ab__vendor_stickers 
  LEFT JOIN cscart_ab__stickers AS stickers ON stickers.sticker_id = cscart_ab__vendor_stickers.sticker_id 
WHERE 
  stickers.sticker_id IN (19) 
  AND stickers.vendor_edit = 'Y'

Query time 0.00022

JSON explain

{
  "query_block": {
    "select_id": 1,
    "cost": 0.00183779,
    "nested_loop": [
      {
        "table": {
          "table_name": "stickers",
          "access_type": "const",
          "possible_keys": ["PRIMARY"],
          "key": "PRIMARY",
          "key_length": "3",
          "used_key_parts": ["sticker_id"],
          "ref": ["const"],
          "rows": 1,
          "filtered": 100
        }
      },
      {
        "table": {
          "table_name": "cscart_ab__vendor_stickers",
          "access_type": "ref",
          "possible_keys": ["sticker_company_id"],
          "key": "sticker_company_id",
          "key_length": "3",
          "used_key_parts": ["sticker_id"],
          "ref": ["const"],
          "loops": 1,
          "rows": 1,
          "cost": 0.00183779,
          "filtered": 100
        }
      }
    ]
  }
}