{
	"odata.metadata": "https://portal.xpertdoc.com/odata4/v5/$metadata#BatchOperations",
	"BatchOperationId": "00000000-0000-0000-0000-000000000000",
	"BatchId": "00000000-0000-0000-0000-000000000000",
	"SequenceNumber": 0,
	"ContractName": "Contract.Name",
	"Status": "Created",
	"StartTime": null,
	"EndTime": null,
	"InputMetadata": "InputMetadata",
	"OutputDocumentName": null,
	"OutputDocumentType": null,
	"OutputDocumentMetadata": null,
	"OutputMetadata": null,
	"ErrorMessage": null,
	"CreatedByUserProfileId": "00000000-0000-0000-0000-000000000000",
	"CreatedDate": "2016-01-01T00:00:00.0000000Z",
	"ModifiedByUserProfileId": "00000000-0000-0000-0000-000000000000",
	"ModifiedDate": "2016-01-01T00:00:00.0000000Z",
	"Timestamp": "AAAAAAAEqd8="
}

var url = "http://portal.xpertdoc.com/odata/v4/BatchOperations(guid'00000000-0000-0000-0000-000000000000')";	
	
var values = new Dictionary<string, string>
{		
				{ "ValueToChange", "Value"},  
				{ "Name", "New Name"}	
};
var value = await Update(url, values);