UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'Rk51+4zFnyEz5t26z9Mx0LzQuIFI/Q9dw+FWNZaebT0=' 
WHERE 
  key_id = '5208eae054ba4b0e6fa2499422b1fe33371eea3e2d8c0520991b400c41139b95' 
  AND (
    token = 'Rk51+4zFnyEz5t26z9Mx0LzQuIFI/Q9dw+FWNZaebT0=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )