To unsubscribe, you do so the same way you subscribed however, the game will still show up in TTS, it just won’t be updated.
If you are already subscribed to it, it will have a checkmark underneath of the image. Once you find the mods you are interested in trying out, you can either click on the mod’s page to read through the description and subscribe there, or you can hover over each mod and click the green plus sign button. This is why when creating a mod it’s very important to put the correct tag of your mod to make it easier for people to find the games they want on the Workshop. You can sort by game type and number of players.
Subscribing to a mod on the Workshop is very easy.
You can make your mods available to the public, for your friends only, or completely hidden where only you can see them. This is the place where you upload your games or download them for free. The Steam Workshop is an area where the community really gets involved, coming up with fantastic and creative ideas to share with everyone else.