Lists manifest CIDs stored locally in node.

Example response

{
  "content": [
    {
      "cid": "QmYyQSo1c1Ym7orWxLYvCrM2EmxFTANf8wXmmE7DWjhx5N",
      "manifest": {
        "treeCid": "QmYyQSo1c1Ym7orWxLYvCrM2EmxFTANf8wXmmE7DWjhx5N",
        "filename": "storage.png",
        "mimetype": "image/png"
      }
    }
  ]
}