UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'u8eZtVnk27/slZYWlq6wTfPHb9VQ9j9mxKXF6RJEQfs=' 
WHERE 
  key_id = 'a4aafbb505064293a32a12899106da79784b02485650d2b9f25279194274c8e7' 
  AND (
    token = 'u8eZtVnk27/slZYWlq6wTfPHb9VQ9j9mxKXF6RJEQfs=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )