How to Update a PM procedure on a work order

Hi,

I'm trying to update the PM procedures on a work order and can't seem to get it to work

Here's the code:

Post https://am-ce916.corrigo.com/api/v1/cmd/WoProcedureStep/Update

{
"Command": {
"Entity": {
"Id": 9481119,
"Comment": "Test",
"Description": "Test"
},
"ProcedureStepId":9481119,
},
"Properties": [
"Id",
"Comment",
"Description"
]
}
}

Here's the responce:

{"CommandResult": {"ProcedureStep": {
"WorkOrderId": 1538122,
"Index": 3,
"Comment": "",
"Description": "",
"StatusId": "Open",
"WoProcedureId": 611642,
"ProcedureTemplateStep": {"Id": 38491},
"TypeId": "Field",
"IsWon": false,
"IsRequired": true,
"FieldDescriptor": {"Id": 205},
"DataTypeId": "Text",
"IsNotApplicable": false,
"MoneyId": "Unknown",
"ActionsRequired": 0,
"ActionsTaken": 0,
"IsVisible": true,
"ConditionType": "Regular",
"ParentStepId": 0,
"StepNumber": "3",
"IsRemoved": false,
"ConcurrencyId": 1,
"Id": 9481119
}}}