UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'U81nhYzY5nKZcpVUmV7YT+zqrVTGkm50WPXvliB1FHY=' 
WHERE 
  key_id = '7531bd9046bb874a656397f7d0c9f81f2a2c2eb59af04f767fbb4b447ff92b03' 
  AND (
    token = 'U81nhYzY5nKZcpVUmV7YT+zqrVTGkm50WPXvliB1FHY=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )