UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'BL+KFcTiubmvWFSCgDO7PxAdwdQJSN1zNDbmqCfcIJI=' 
WHERE 
  key_id = '394dad00724739de62988f41c8d041de3a664acaaeb301445895c3b81dda1743' 
  AND (
    token = 'BL+KFcTiubmvWFSCgDO7PxAdwdQJSN1zNDbmqCfcIJI=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )