UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'iGRb27BpUTZj9mTZp3nh2NsKsiZUdY4SPGJiHtAUnDw=' 
WHERE 
  key_id = '38ad03eb7ccc7ea67740dbe78eb254ce1e3932b4ba86c7d082cc08ee9d7b5b63' 
  AND (
    token = 'iGRb27BpUTZj9mTZp3nh2NsKsiZUdY4SPGJiHtAUnDw=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )