SELECT 
  cscart_pages.*, 
  cscart_page_descriptions.*, 
  cscart_seo_names.name as seo_name, 
  cscart_seo_names.path as seo_path 
FROM 
  cscart_pages 
  INNER JOIN cscart_page_descriptions ON cscart_pages.page_id = cscart_page_descriptions.page_id 
  LEFT JOIN cscart_seo_names ON cscart_seo_names.object_id = cscart_pages.page_id 
  AND cscart_seo_names.type = 'a' 
  AND cscart_seo_names.dispatch = '' 
  AND cscart_seo_names.lang_code = 'en' 
  INNER JOIN cscart_ult_objects_sharing ON (
    cscart_ult_objects_sharing.share_object_id = cscart_pages.page_id 
    AND cscart_ult_objects_sharing.share_company_id = 1 
    AND cscart_ult_objects_sharing.share_object_type = 'pages'
  ) 
WHERE 
  cscart_pages.page_id = 42 
  AND cscart_page_descriptions.lang_code = 'en' 
  AND (
    cscart_pages.usergroup_ids = '' 
    OR FIND_IN_SET(0, cscart_pages.usergroup_ids) 
    OR FIND_IN_SET(1, cscart_pages.usergroup_ids)
  ) 
  AND cscart_pages.page_type IN ('T', 'L', 'B', 'F')

Query time 0.00043

JSON explain

{
  "query_block": {
    "select_id": 1,
    "const_condition": "1",
    "table": {
      "table_name": "cscart_pages",
      "access_type": "const",
      "possible_keys": ["PRIMARY"],
      "key": "PRIMARY",
      "key_length": "3",
      "used_key_parts": ["page_id"],
      "ref": ["const"],
      "rows": 1,
      "filtered": 100
    },
    "table": {
      "table_name": "cscart_page_descriptions",
      "access_type": "const",
      "possible_keys": ["PRIMARY"],
      "key": "PRIMARY",
      "key_length": "9",
      "used_key_parts": ["page_id", "lang_code"],
      "ref": ["const", "const"],
      "rows": 1,
      "filtered": 100
    },
    "table": {
      "table_name": "cscart_ult_objects_sharing",
      "access_type": "const",
      "possible_keys": ["PRIMARY"],
      "key": "PRIMARY",
      "key_length": "159",
      "used_key_parts": [
        "share_object_id",
        "share_company_id",
        "share_object_type"
      ],
      "ref": ["const", "const", "const"],
      "rows": 1,
      "filtered": 100,
      "using_index": true
    },
    "table": {
      "table_name": "cscart_seo_names",
      "access_type": "ref",
      "possible_keys": ["PRIMARY", "dispatch"],
      "key": "PRIMARY",
      "key_length": "206",
      "used_key_parts": ["object_id", "type", "dispatch", "lang_code"],
      "ref": ["const", "const", "const", "const"],
      "rows": 1,
      "filtered": 100,
      "attached_condition": "trigcond(cscart_seo_names.`type` = 'a' and cscart_seo_names.dispatch = '' and cscart_seo_names.lang_code = 'en')"
    }
  }
}

Result

page_id company_id parent_id id_path status page_type position timestamp usergroup_ids localization new_window use_avail_period avail_from_timestamp avail_till_timestamp facebook_obj_type lang_code page description meta_keywords meta_description page_title link seo_name seo_path
42 1 45 45/42 A T 0 1498017600 0 0 N 0 0 activity en RFS Engraving Services <p>Engraving two-way radios is the latest value-added service we are offering to our customers. </p> <div align="center"> <iframe width="560" height="315" src="https://www.youtube.com/embed/tezV7lH2rSE" title="YouTube video player" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture" allowfullscreen=""> </iframe> </div> <p>We can engrave any two-way radio model with not only text, but logo images as well. Engraving filler is finished in white and makes for a very clean original look. Logo images require a $10 setup fee and all other engraving is $10 per radio. </p> <div id="mf_placeholder" data-formurl="https://rfswireless.com/machform/embed.php?id=14749" data-formheight="1145" data-paddingbottom="10"> </div> <script type="text/javascript" src="https://rfswireless.com/machform/js/jquery.min.js"></script> <script type="text/javascript" src="https://rfswireless.com/machform/js/jquery.ba-postmessage.min.js"></script> <script type="text/javascript" src="https://rfswireless.com/machform/js/machform_loader.js"></script> <p>*Part # L-ENG-1 will appear on invoices for custom logo setup. <br> *Part # L-ENG-2 will appear on invoices for laser engraving service. </p> rfs-engraving-services 45