UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'Vfjl0d3BorCMFFnhF9YXudWVmtEJzTukwVsrpKMqTP0=' 
WHERE 
  key_id = '93ebdf39b73efa1e3d16aa1436853b5583338c7b21f54609222018e97dbee5a9' 
  AND (
    token = 'Vfjl0d3BorCMFFnhF9YXudWVmtEJzTukwVsrpKMqTP0=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )