{
  "manageEntity": {
    "action": "Update",
    "entityId": "479478233",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x3c21ed1a23d81ee0cf0fcc46547f938474675c2f3c15082c0eba9c7b1c5f109a",
    "signature": "0x1118e7a9d3abb2fbbe0bff0edb91dadbf4f255a942b8c7e0818da4fe536db1567d6d6359bd8a8b05b648f7ef13acf7b0d92979cbafbc2865082fb87d36e5094f1b",
    "signer": "0x46AC3E501e564C8a70D154d3D56d1448B6750293",
    "userId": "479478233"
  }
}