UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'qHvMAz9wuuZfL2ViaL5CTqcMdCDA3JwZnpXP+HqEaNo=' 
WHERE 
  key_id = '538d9c0cbd7c433d89c5a8c9ad377a876807d2dff20378449a230daf0bc640ac' 
  AND (
    token = 'qHvMAz9wuuZfL2ViaL5CTqcMdCDA3JwZnpXP+HqEaNo=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )