UnsubscribeLevel1
The ID of the Order Management System.
The ID of the instrument.
curl -L \ --request POST \ --url 'UnsubscribeLevel1' \ --header 'Content-Type: application/json' \ --data '{ "OMSId": 1, "InstrumentId": 1 }'
{ "result": true, "errormsg": null, "errorcode": 0, "detail": null }