{
  "manageEntity": {
    "action": "Update",
    "entityId": "275350856",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xfb307fb07b3bb16bb7aa8697186bee34476b2a6981661f30e9baf30ae0e75bb6",
    "signature": "0xab47942bc79751ea7f132945397cf5c076408bc0c1d9428df1eb087c13ad77d1185b903b0bf82df3f677ab59b5186eb734c70e314040cc3123dfb5e6adf71d471b",
    "signer": "0x99cc71DF4121e0a865e7D094866224A204ae2b44",
    "userId": "275350856"
  }
}