UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'PCg+5OtY6Wp3iH9IOJwQfqCD+TcXMlz8FgIUfwwo9Gs=' 
WHERE 
  key_id = '88fc87db4ad7c46d78dbeefc86dbd88fd8a559f7d5d217e6c52c5489f79001e2' 
  AND (
    token = 'PCg+5OtY6Wp3iH9IOJwQfqCD+TcXMlz8FgIUfwwo9Gs=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )