set workflow data objects aka data attributes

Example request

{
  "objects": [
    {
      "value": {
        "data": "data",
        "extStoreId": "extStoreId",
        "extPath": "extPath",
        "encoding": "encoding"
      },
      "key": "key"
    },
    {
      "value": {
        "data": "data",
        "extStoreId": "extStoreId",
        "extPath": "extPath",
        "encoding": "encoding"
      },
      "key": "key"
    }
  ],
  "workflowRunId": "workflowRunId",
  "workflowId": "workflowId"
}