UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'U8tM2Qn0ECqfBUht/7wMzM6hgrVGMQliPkllJGi0VUo=' 
WHERE 
  key_id = '5256d1d39f330dab61724c106e218f841760f8173c7fff34290426b75d4ef009' 
  AND (
    token = 'U8tM2Qn0ECqfBUht/7wMzM6hgrVGMQliPkllJGi0VUo=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )