UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'npBuQUPlpb8b5vAptMwvnHNIzXmqX2MdKBC7jt0PRkY=' 
WHERE 
  key_id = '7516877ff1716523c7a76b41cac27e3694773653c171d62c2748a146b1d3bc9d' 
  AND (
    token = 'npBuQUPlpb8b5vAptMwvnHNIzXmqX2MdKBC7jt0PRkY=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )