UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'VQ5LbCJJWVcM//VbMhAnvakkRXwzE6PtwP4TqpReCTU=' 
WHERE 
  key_id = '768608a4d5a3928fce7e9e781ecea08bce6d4945549d02c5c3725bc646e17905' 
  AND (
    token = 'VQ5LbCJJWVcM//VbMhAnvakkRXwzE6PtwP4TqpReCTU=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )