Add whitelisting service + update the jwt valid audience

src/Managing.Domain/Whitelist/WhitelistAccount.cs

@@ -0,0 +1,15 @@
+namespace Managing.Domain.Whitelist;
+
+public class WhitelistAccount
+{
+    public int Id { get; set; }
+    public required string PrivyId { get; set; }
+    public DateTime PrivyCreationDate { get; set; }
+    public required string EmbeddedWallet { get; set; }
+    public string? ExternalEthereumAccount { get; set; }
+    public string? TwitterAccount { get; set; }
+    public bool IsWhitelisted { get; set; } = false;
+    public DateTime CreatedAt { get; set; }
+    public DateTime? UpdatedAt { get; set; }
+}
+