Cascade deleting multiple tables - entity-framework

Question

I have 4 tables. Cities, Providers, ProviderAdmins, AspNetUsers.
I want to setup following behaviour:
If i delete Cities entry - City was deleted.
If i delete AspNetUsers entry - User was deleted -> ProviderAdmin was
deleted
If i delete ProviderAdmins entry - ProviderAdmin was deleted -> User was deleted
If i delete Provider entry - Provider was deleted -> ProviderAdmin
was deleted -> User was deleted.
Now i even can't create my db from my model, because getting following issue:
Introducing FOREIGN KEY constraint 'FK_ProviderAdmins_Providers_ProviderId' on table 'ProviderAdmins' may cause cycles or multiple cascade paths. Specify ON DELETE NO ACTION or ON UPDATE NO ACTION, or modify other FOREIGN KEY constraints. Could not create constraint or index. See previous errors.
My entities:
public class City
{
public long Id { get; set; }
public string Region { get; set; } = string.Empty;
public string Name { get; set; } = string.Empty;
public virtual ICollection<ProviderAdmin> ProviderAdmins { get; set; }
}
public class User : IdentityUser
{
public string LastName { get; set; }
public string MiddleName { get; set; }
public string FirstName { get; set; }
public virtual ProviderAdmin ProviderAdmin { get; set; }
}
public class Provider
{
public long Id { get; set; }
public virtual ICollection<ProviderAdmin> ProviderAdmins { get; set; }
}
public class ProviderAdmin
{
public long Id { get; set; }
[Required]
[ForeignKey("UserId")]
public string UserId { get; set; }
public virtual User User { get; set; }
[Required]
public long ProviderId { get; set; }
public virtual Provider Provider { get; set; }
public long? CityId { get; set; }
public virtual City City { get; set; }
}
Fluent Api:
builder.Entity<Provider>()
.HasMany(pa => pa.ProviderAdmins)
.WithOne(p => p.Provider)
.OnDelete(DeleteBehavior.Cascade);
builder.Entity<City>()
.HasMany(pa => pa.ProviderAdmins)
.WithOne(p => p.City)
.OnDelete(DeleteBehavior.NoAction);
builder.Entity<User>()
.HasOne(u => u.ProviderAdmin)
.WithOne(p => p.User)
.HasForeignKey<ProviderAdmin>(p => p.UserId)
.OnDelete(DeleteBehavior.Cascade);
Please, give me advice about how can i fix error mentioned above, and how can i setup behaviour which i want to get.
Thank you so much for your attention.
UPD: I made relationship PAs - AspNetUsers to be one or zero to one. It is still not working, i still missing something. I know that problem is in relationship between provideradmin and users but i really don't know why it not allowed.