UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '8BIOrlghhaVe/s6qGoJ1Z5jth3Lv35Un72PqPkQn/+w=' 
WHERE 
  key_id = '546b87dc3571aba27b79f069172b435507aaebdb87354df6b0c3e5f6fafb5166' 
  AND (
    token = '8BIOrlghhaVe/s6qGoJ1Z5jth3Lv35Un72PqPkQn/+w=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )