UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'z/2stDkpBtpfFl434otOeWyAo+T7nJcwdPa++MHSd1c=' 
WHERE 
  key_id = '1c81692b30b423cb4cc514fea364155d3d235478d4b7988da6fc97b1bda50339' 
  AND (
    token = 'z/2stDkpBtpfFl434otOeWyAo+T7nJcwdPa++MHSd1c=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )