{
  "manageEntity": {
    "action": "Update",
    "entityId": "625897998",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x7afa6fa9b8f4ee27f062498346e4d0c7c2751b0d73076ece170b622041039932",
    "signature": "0x528ee49bc12c0357f4fb251fb78bf0eb0684b72033577578a141bdb650ed6d5d341a9cbb01e55705bfd5f399bbc33143cb610834bc3dcd7117d9a691177fea4c1c",
    "signer": "0x1b8900f6b161d2A764D77aDDCD8F3Ff1f59d2294",
    "userId": "625897998"
  }
}