Issue when trying to attach a Media Object File using Orchestrator

Hello community.

I have an issue when I am trying to use an Orchestrator connector to attach a Media Object file. When I execute it, there is no error, but the file is not attached to the record. I am using the "Using Temporary File Location" option, and the JSON that I am using is that:

{   "token":"${tokenAIS}",  "moStructure":"GT03B31",   "moKey":[       "${activityID}"   ],   "formName":"P03B31_W03B31G",   "version":"ZJDE0001",   "file":{       "fileName":"comprovante.html",       "itemName":"comprovante"   }}

The file is a HTML page, and the record is from the F03B31 table.

I also tried to use the Doc ID 2697443.1