The default sounds config:
material - the material of the item. (you need to use the Minecraft item/block id)

name - the name of the item/block in the UI

custom_model_data - the custom model data value tag (mainly if you have a resource pack)
NOTE: custom_model_data is not required. so if you're not using it just leave it blank.

sound_event - the name of the sound event, you can find the sound event you want using the command /playsound <sound_event>. or use a custom sound event from a resource pack