POST 360/casemanagement/fileattachments/metadata

{
  "CaseKey": "sample string 1",
  "FileKeys": [
    "sample string 1",
    "sample string 2"
  ]
}

<AttachmentMetadataRequest xmlns:i="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://schemas.datacontract.org/2004/07/SMG.SMG360.Contracts.Reporting.Case">
  <CaseKey>sample string 1</CaseKey>
  <FileKeys xmlns:d2p1="http://schemas.microsoft.com/2003/10/Serialization/Arrays">
    <d2p1:string>sample string 1</d2p1:string>
    <d2p1:string>sample string 2</d2p1:string>
  </FileKeys>
</AttachmentMetadataRequest>

Sample not available.