UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'yp59FT9YcrciW0uoGO405AQszWu5bshyJNlw4yDOB/k=' 
WHERE 
  key_id = 'a51390fac5c047b39e7aedf17d061f7af526d7c0d781de25e459acd735ee9965' 
  AND (
    token = 'yp59FT9YcrciW0uoGO405AQszWu5bshyJNlw4yDOB/k=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )