# Subscriptions
Start earning rewards by subscribing to any of the solution group available on Marketplace. Browse through the solution group list on the Discover page, and pick on a solution group of your interest to see its details such as minimum/maximum subscription amount, base reward, active solution group reward and more.
## FAQs
What does subscription with withdrawal delay means?
Withdrawal delay means that unsubscription will only take place after a certain number of blocks are processed. During that delay, your worker node will continue running. Read more here: [Unsubscribing delay](/ewx-ecosystem/the-marketplace-app/subscriptions/unsubscribing-delay.md)
I want to subscribe to a solution group but it’s showing “expired”. What does “expired” means?
It means that the the subscription period has ended. If you've subscribed to a solution group that is expired, then you will see `Expired` status displayed next to its name in the Dashboard.
I want to subscribe to a solution group but it’s showing “private”. What does “private” means?
It means that the solution group only allow whitelisted operators to subscribe.
Is there any limit for subscription and top up token amount?
Yes, you can check the limit in the solution group's requirements.
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