I need to change 2 values with REST, I use'd API v3 and PATCH method. This values is in another workflow. 
JSON 
[
{
    "data": {
        "guid": "3567e810-6f44-41e5-9ac3-794d6e055db1",
        "value": "2024-05-27T14:02:26"
    },
    "wynik": {
        "guid": "56e078eb-dc11-4960-a662-3974f0f837da",
        "value": "Ryzyko niskie"
    }
}
]
In other workflow history I have only infpormation about Save workflow by ServiceWebconApiProd - Registered App.
                        
 
                                     
                                 
                                