A Judged Contest means that the winner of the contest is chosen by whoever is hosting it. No voting takes place.
For the subject line, try to use something short, if it's a well known company/brand, just say their name and contest. Example: "Kellogs Contest", if it's a photo or story contest, just add that into it to help with the description.
Try to put the location restriction in the title as well. Example *USA Only*, *Canada and UK Only*. Use the asterisks for this portion. And last, but not least, when the entry period ends. The Promotion period doesn't matter usually, just make sure, because that might mean the entire time and entry submissions might have ended by that time.
Now for the body of the post. Include the link, you can usually copy and paste any info you find, always check the Official Rules, just to make sure it's right though. The main things to post are the link, area restrictions again, age limit, and the prizes.
You can use this guide for your posts if you want to make it easier to organize and get all the information. You may include more info if you want.
Who can win the prize by location/age limits:
Start and End date:
Link to Official Rules: (optional)
Contest instructions: (optional)