Parsing Json array to C# Object

I'm building a .NET WebAPI that receives Json through a Post operation. The Json that's being received could look like the following:

{
  "site": "00131231201d010231",
  "publishTime": 123123123123,
  "domains": [
    "example.com"
  ],
  "publishedBy": {
    "name": "John Doe",
    "id": "00211231201d010231"
  }
}

I converted my Json response type to C# objects which look like the following:

public class Project
{
    [Key]
    [JsonPropertyName("site")]
    public string Site { get; set; }

    [JsonPropertyName("publishTime")]
    public long PublishTime { get; set; }

    [JsonPropertyName("domains")]
    public List<Domain> Domains { get; set; }

    [JsonPropertyName("publishedBy")]
    public PublishedBy PublishedBy { get; set; }
}

public class PublishedBy
{
    [JsonPropertyName("name")]
    public string Name { get; set; }

    [Key]
    [JsonPropertyName("id")]
    public string Id { get; set; }
}

public class Domain
{
    [Key]
    public string Id { get; set; }
    public string Name { get; set; }
}

As you can see, my goal is to add the contents to my database. Only when I use List Domains, it gives me an error saying I can't use strings in EFCore when I try to add a migration.

So, I created an object called Domain. But now when I try to deserialize it gives me the following error:

System.Text.Json.JsonException: The JSON value could not be converted to spine_management.Models.Domain.

Does anyone happen to know what type I should make Domains and/or what the best way to deserialize this object is?

EDIT:

I want to keep the domains attribute, I don't want to ignore or delete them.