{
  "manageEntity": {
    "action": "Update",
    "entityId": "720996520",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x9501accaa4bea9c22ec7c82580f0d5f8c03214dd16f914246abb319ae21ac966",
    "signature": "0xe3af352ec5d10c4bb7c813604d5263258b330d2b0fcb4635618c5f068188682a4518451a60343c4bd7f6a9998051d1d4289ae8d0be01e7f9900b692d1db042491c",
    "signer": "0x13DCCf302a981e4d24BF1B7354e4530FeCa68216",
    "userId": "720996520"
  }
}