Fix the marketplace not working in the game player

This took me 3 weeks to figure out, I hate everything

Assets/Scripts/Types/MarketplaceIconType.cs

@@ -1,13 +1,30 @@
-using System.Numerics;
+using UnityEngine.Scripting;
 using Newtonsoft.Json;
+using System.Numerics;
 
+[Preserve]
 public class MarketplaceIconType {
+  [Preserve]
+  [JsonProperty("username")]
+  public string CreatorUsername { get; set; }
+
+  [Preserve]
+  [JsonProperty("userid")]
+  public BigInteger CreatorUserID { get; set; }
+
+  [Preserve]
   [JsonProperty("data")]
   public string Data { get; set; }
+
+  [Preserve]
   [JsonProperty("uuid")]
   public string UUID { get; set; }
+
+  [Preserve]
   [JsonProperty("price")]
   public BigInteger Price { get; set; }
+
+  [Preserve]
   [JsonProperty("name")]
   public string Name { get; set; }
 }