UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '6p/KLIhPMdFa8tZPWZJPJsVGEQfxBuOujDyoRNoqPg4=' 
WHERE 
  key_id = 'a15f064b6668d303fc87eb59e4a0442b25e9c9f293175c8fd75eccf512c583d2' 
  AND (
    token = '6p/KLIhPMdFa8tZPWZJPJsVGEQfxBuOujDyoRNoqPg4=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )