UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'PkrYqE0XG6tACnztMqDYPjkBBJdXKRYiG/yIy9F25rQ=' 
WHERE 
  key_id = '21cac940946b0eb88ba51cf28cffc013a8a5f9ef55a16c7a4303c13629f7fac9' 
  AND (
    token = 'PkrYqE0XG6tACnztMqDYPjkBBJdXKRYiG/yIy9F25rQ=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )