UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'mX+E768GIyPu3we99mNGofpBv11Xu4DS4JPgbKylpM4=' 
WHERE 
  key_id = '271c67fd9cfbb55212f686d075c28c53ce986c918391139464d595c33e513a31' 
  AND (
    token = 'mX+E768GIyPu3we99mNGofpBv11Xu4DS4JPgbKylpM4=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )