Issue/1799 ap creation option on resource creation

src/JwtHandler/JwtHandler.cs

@@ -28,7 +28,7 @@ namespace Coscine.JwtHandler
             _jwtSecurityTokenHandler = new JwtSecurityTokenHandler();
             _symmetricSecurityKey = GetSecurityKey();
             _centuryBegin = new DateTime(1970, 1, 1, 0, 0, 0, DateTimeKind.Utc);
-            _defaultExpiration = 60;
+            _defaultExpiration = 1440;
             _issuer = "https://coscine.rwth-aachen.de";
             _audience = "https://coscine.rwth-aachen.de";
         }