Said simply, this is the document that gives Flatio permission to arrange a rental for you.
The Agency Contract (brokerage agreement) is between the landlord (or person/company has the right to rent out the property) and Flatio. By signing this document (in My Rentals), you give permission for us to post your property listing on our portal (i.e., to advertise it) and allows us to send reservation requests from potential tenants.
Please note that a lease agreement (the rental relationship) is between the landlord and the tenant. Flatio only acts as a rental agent.