...
{
"reportName": "RM_PerfTotalExtended",
"entityId": "41038M",
"beginDate": "20150101",
"endDate": "20151231",
"fields": "1 Yr Net Return vs BM,10 Yr Annual Net Return vs BM",
"outputFormat":"JSON"
}
and redirected to the AdhocReport POST endpoint:
...