UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '6E6ZY8/UC79vjICMBM9IFaU7Ays3cAc+hXVAAEFxlJk=' 
WHERE 
  key_id = '251ba55346f0366701da243bec30f6dc7ed6ebc4353e2b1fb607d707fbc919fb' 
  AND (
    token = '6E6ZY8/UC79vjICMBM9IFaU7Ays3cAc+hXVAAEFxlJk=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )