{
  "manageEntity": {
    "action": "Update",
    "entityId": "141943527",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x51172f5f59fb93917fb8baf8df382b9f1c8762a07459804aa028c06354ee6c23",
    "signature": "0xb390f10ef50de44ad4db3d52d7f1df317a3deffd87808ba52d39c97ee34b98b8124394652e861b4542af86796ab094d6cfd33d8fd243bb994393ae99023dc9001b",
    "signer": "0x680E955d6C9b03ef90e202Db35A7d58474f0EDdA",
    "userId": "141943527"
  }
}