MandrillSyncEventReject.Sender is not a string anymore

[BonnieSilentPartner]

Something must have changed on Mandrill's end. The Sender property is now an object that I turned into this class to get our webhook to work:

public SenderReputationStats? Sender { get; set; }

public class SenderReputationStats
{
public int Sent { get; set; }
public int Hard_Bounces {get; set;}
public int Soft_Bounces {get; set;}
public int Rejects {get; set;}
public int Complaints {get; set;}
public int Unsubs {get; set;}
public int Opens {get; set;}
public int Clicks {get; set;}
public int Unique_opens {get; set;}
public int Unique_clicks {get; set;}
public int Reputation {get; set;}
public string Address { get; set; }

  [JsonConverter(typeof(IsoDateTimeConverter))]
  public DateTime Created_at { get; set; }

}

Thanks!
Bonnie