First you will need a new Lottie animation. You can visit https://lottiefiles.com/ to download animation you like in a JSON format. Drag & Drop the Json Lottie file from Finder directly in your project -> Lottie folder group.
In the example bellow we use a json Lottie file called bluewaves. -> Change it with the name of your new file. You can also apply width and height modifiers to orange a perfect size.