UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'vU6bNCIwL3l1ot5w3mAZu6FKaytJTqLzXFIH6WFr/6s=' 
WHERE 
  key_id = '3c97c99261b2ccfd8343b4e678c79414cbbd29848809a47c95332190d900273f' 
  AND (
    token = 'vU6bNCIwL3l1ot5w3mAZu6FKaytJTqLzXFIH6WFr/6s=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )