UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'z+vbRHJVHFZpCkljedVU9J9nXaR7txus/9lVb8tKaIg=' 
WHERE 
  key_id = '394e0c4dc1d51f0a0bfe04f3d159910f2079c06afc2d68d991028edc21ab4251' 
  AND (
    token = 'z+vbRHJVHFZpCkljedVU9J9nXaR7txus/9lVb8tKaIg=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )