SELECT 
  * 
FROM 
  tmall_ab__eb_script_templates script_templates 
WHERE 
  1 
  AND script_templates.script = 'PriceTracking' 
  AND script_templates.lang_code = 'en' 
  AND script_templates.storefront_id = 1

Query time 0.00790

JSON explain

{
  "query_block": {
    "select_id": 1,
    "cost": 0.00183779,
    "nested_loop": [
      {
        "table": {
          "table_name": "script_templates",
          "access_type": "ref",
          "possible_keys": ["eb_script_templates_pk"],
          "key": "eb_script_templates_pk",
          "key_length": "77",
          "used_key_parts": ["script"],
          "ref": ["const"],
          "loops": 1,
          "rows": 1,
          "cost": 0.00183779,
          "filtered": 100,
          "attached_condition": "script_templates.storefront_id = 1 and script_templates.script = 'PriceTracking' and script_templates.lang_code = 'en'"
        }
      }
    ]
  }
}