To override the Content-type in your clients, use the HTTP Accept Header, append  the .jsv suffix or  ?format=jsv
        
        HTTP + JSV
         The following are sample HTTP requests and responses. 
            The placeholders shown need to be replaced with actual values.
POST /DynamicsCRM/LegacyImport/Create HTTP/1.1 
Host: data.regent-college.edu 
Accept: text/jsv
Content-Type: text/jsv
Content-Length: length
{
	regent_id: 0,
	import_id: 0,
	subject: String,
	description: String,
	related_username: String,
	is_contact: False,
	is_account: False,
	added_date: 0001-01-01
}
 
HTTP/1.1 200 OK
Content-Type: text/jsv
Content-Length: length
{
	errorCode: String,
	message: String,
	stackTrace: String,
	errors: 
	[
		{
			errorCode: String,
			fieldName: String,
			message: String,
			meta: 
			{
				String: String
			}
		}
	],
	meta: 
	{
		String: String
	}
}