diff --git a/src/DigitalData.Auth.API/Program.cs b/src/DigitalData.Auth.API/Program.cs
index 74884e8..787386e 100644
--- a/src/DigitalData.Auth.API/Program.cs
+++ b/src/DigitalData.Auth.API/Program.cs
@@ -1,4 +1,5 @@
 using DigitalData.Auth.API.Config;
+using DigitalData.Auth.API.Dto;
 using DigitalData.Auth.API.Services;
 using DigitalData.Core.Security;
 using Microsoft.AspNetCore.Authentication.JwtBearer;
@@ -18,6 +19,11 @@ var apiParams = config.Get<AuthApiParams>() ?? throw new InvalidOperationExcepti
 builder.Services.Configure<AuthApiParams>(config);
 builder.Services.AddConsumerApiServiceFromConfiguration(config);
 builder.Services.AddCryptoFactory(config.GetSection("CryptParams"));
+builder.Services.AddJwtSignatureHandler<ConsumerApi>(api => new Dictionary<string, object>
+{
+    { JwtRegisteredClaimNames.Sub, api.Name },
+    { JwtRegisteredClaimNames.Iat, DateTimeOffset.UtcNow.ToUnixTimeSeconds() }
+});
 
 builder.Services.AddControllers();