UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'z81vD7BC9Ezdb17eOHU5RggXvOk9PPobnKA8/ehkAek=' 
WHERE 
  key_id = 'b3ca839c7d0dc38bfe0196a862208ff78dd702ade1faa11f13b0279d766d0993' 
  AND (
    token = 'z81vD7BC9Ezdb17eOHU5RggXvOk9PPobnKA8/ehkAek=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )