Hello Halyna,
Welcome to the QuickBooks Community! It's good to hear that you've receiving a rent subsidy from the Canada Revenue Agency. It's important to ensure this is recorded properly in your books. I can help steer you in the right direction.
Since this is a specialized situation in terms of bookkeeping, I recommend reaching out to an accountant about how to post this. They can advise you on the best way to record the subsidy for your business needs. You can invite your accountant to view your QuickBooks Online company through the My Accountant tab in the left hand menu. If you're not currently working with an accountant, you can use the Find a pro to help option to search for a QuickBooks-certified ProAdvisor in your area to assist you.
Have a great evening!