{
  "manageEntity": {
    "action": "Update",
    "entityId": "846192294",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x427e285809b3ddf4f2f89e1ca0eee30cc0d54b5e39ac7fa4a8d4c76ed5a324d6",
    "signature": "0xf8273df98c9da14dac26082a3b4b1234b5081c9cabff0239203da2950aaec16200019c422c1e543399e1b898563a495573714814cb32aff8ea104ad2bf8219de1b",
    "signer": "0x964c93e100186b8Bd492f81a941CF4184E351b6e",
    "userId": "846192294"
  }
}