UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '6HJbzhm+9f9krQz4qYPyYIYqY9LcO1Nl6H+8w1VrBAs=' 
WHERE 
  key_id = '68f866100e40f1805c7e2d9844d0211922dfb11831bb4b13e458602ab28a7eac' 
  AND (
    token = '6HJbzhm+9f9krQz4qYPyYIYqY9LcO1Nl6H+8w1VrBAs=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )