Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '8dba706eea734ffcf2362bdc849614c79d087ee26132fb2962800f5b49e7e7e1' 
  AND token = '47I9FDM6yuJ+EofhdNwnlOrv1ZrT65NAJcO1FdlFDNw=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00023

JSON explain

{
  "query_block": {
    "select_id": 1,
    "message": "no matching row in const table"
  }
}