[HttpPut]
        public async Task<IHttpActionResult> PutTenant([ModelBinder(typeof(TenantModelBinder))] Tenant tenant)
        {
            //var provider = new MultipartMemoryStreamProvider();
            //var contentType = "";
            //var content = new byte[0];
            //await base.Request.Content.ReadAsMultipartAsync(provider);
            //if (provider.Contents.Count > 0)
            //{
            //    contentType = provider.Contents[0].Headers.ContentType.MediaType;
            //    content = await provider.Contents[0].ReadAsByteArrayAsync();
            //}


            CloudStorageAccount storageAccount = CloudStorageAccount.Parse(ConfigurationManager.AppSettings["AzureStorageKey"].ToString());
            // Create the blob client.
            CloudBlobClient blobClient = storageAccount.CreateCloudBlobClient();

            // Retrieve reference to a previously created container.
            CloudBlobContainer container = blobClient.GetContainerReference(ConfigurationManager.AppSettings["certificatesContainer"].ToString());

            // Retrieve reference to a blob named "myblob".
            CloudBlockBlob blockBlob = container.GetBlockBlobReference("myblob");

            // Create or overwrite the "myblob" blob with contents from a local file.
            //blockBlob.Properties.ContentType = tenant.ContentType;
            MemoryStream stream = new MemoryStream(tenant.CertificateFile);
            blockBlob.UploadFromStream(stream);

            var tenantStore = CosmosStoreFactory.CreateForEntity<Tenant>();
            tenant.CertificatePath = blockBlob.Uri;

            if (!ModelState.IsValid)
            {
                return BadRequest(ModelState);
            }

            var added = await tenantStore.AddAsync(tenant);
            return StatusCode(HttpStatusCode.NoContent);
        }

Unable to resolve iD for entity of type Tenant

public class Tenant
    {
        public string TenantId { get; set; }
        public string TenantUrl { get; set; }
        public Uri CertificatePath { get; set; }
        public string CertificatePassword { get; set; }

        public byte[] CertificateFile { get; set; }

        public override string ToString()
        {
            return JsonConvert.SerializeObject(this);
        }
    }