UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'QLPIuyQR2K5bEDutirtPI5pXvkU8U5rSnPUn88si7DU=' 
WHERE 
  key_id = '140fe5af8e5a5603db7f8ba266c8b926a26a31a473678af92a81b6d04a6321bd' 
  AND (
    token = 'QLPIuyQR2K5bEDutirtPI5pXvkU8U5rSnPUn88si7DU=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )