UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'KmqHm8/TPpDYT6d/DPIi5UqgQ6BTyYYtR+/FfxnNfOI=' 
WHERE 
  key_id = '7e951c6b9802f19f29b6015425017b612310e0a949434890897a716f0282c24f' 
  AND (
    token = 'KmqHm8/TPpDYT6d/DPIi5UqgQ6BTyYYtR+/FfxnNfOI=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )