UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'N50sPHR7Dvu4mBQRlxLFdQsWRa7WRTZylVreZTDGF30=' 
WHERE 
  key_id = '79528276c9d825769acadbc16fb0a3fbac49dba200c0a735979cb01c88c6302d' 
  AND (
    token = 'N50sPHR7Dvu4mBQRlxLFdQsWRa7WRTZylVreZTDGF30=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )