Using a dictionary as target model for deserialization.

PaidCartBagFromJsonText.cs

var paidCartJsonString = @"{
  ""_state"": ""paid"",
  ""paidItems"": [
    { 
      ""id"": ""1bcd"",
      ""title"": ""gizmo"" 
    },
    { 
      ""id"" : ""3cdf"",
      ""title"": ""widget"",
      ""description"": ""A very useful item""
    }
  ],
  ""payment"": {
    ""amount"": 123.5,
    ""currency"": ""USD""
  },
  ""timestamp"": ""2020-04-11T10:11:33.514+02:00""
}";

var paidCartBagFromText = JsonConvert.DeserializeObject<Dictionary<string, object>>(paidCartJsonString);

var paidItems = (List<object>) paidCartBagFromText["paidItems"];
var firstItem = (Dictionary<string, object>) paidItems[0];
var firstItemTitle = (string) firstItem["title"];

var payment = (Dictionary<string, object>) paidCartBagFromText["payment"];
var currency = (string) payment["currency"];