Perform advanced search -findByAdvancedSearchQuery Oracle Fusion HCM API

I am trying to call the following API:
/hcmRestApi/resources/latest/dataLoadDataSets/action/findByAdvancedSearchQuery

I am passing the below request payload:

{
"filters": [{"CreatedBy": ["TestUser1","TestUser2"]}],
"limit": 5,
"displayFields": ["RequestId", "DataSetId", "DataSetName", "CreatedBy", "CreationDate"],
"sort": [{"name": "CreationDate", "direction": "desc"}]
}

However, the response is coming back as null with a 400 Bad Request error.
If I remove the "filters" attribute, the response returns successfully with 200 OK.

Can someone please help identify what is incorrect with the request payload?