UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'gu9xxWRa+htKGlb4C33F0nXc551MGl6tuVVjVLEHxUA=' 
WHERE 
  key_id = 'a4463740dd5c18873beee7d9e9f0daca55af35163c35090c714c163086503d55' 
  AND (
    token = 'gu9xxWRa+htKGlb4C33F0nXc551MGl6tuVVjVLEHxUA=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )

Query time 0.00049