If you are looking for a 7 day diet plan that lowers salt and improves your tickers health an honorable mention goes to the original sacred heart soup diet. You can find exact diet plan details on Diet.com
They include the meal plan, day to day instructions as well as important information regarding the risks precautions and benefits. If you are interested you can find info about other soup diets that work.
Best advice from our end would be to really consider introducing some light exercise too. The British Heart Foundation recently created the below video, a simple 10 minute workout at home in private can really boost the effects of a heart healthy soup diet.