How to connect Identity for two entities at once in two contexts?

Question

ASP.NET

There is a code for connecting Identity:

services.AddIdentity<Customer, IdentityRole<Guid>>(o =>
            {
                o.Password.RequireNonAlphanumeric = false;
                o.Password.RequireUppercase = false;
                o.Password.RequireLowercase = false;
            })
                .AddEntityFrameworkStores<StoreContext>()
                .AddDefaultTokenProviders();

            services.AddIdentity<Manager, IdentityRole<Guid>>()
                .AddEntityFrameworkStores<ManagerContext>()
                .AddDefaultTokenProviders();

Obviously I'm getting the error:

InvalidOperationException: Scheme already exists: Identity.Application Microsoft.AspNetCore.Authentication.AuthenticationOptions.AddScheme(string name, Action<AuthenticationSchemeBuilder> configureBuilder)

How can I connect Identity for two different entities that are in different contexts and different databases?