{
  "manageEntity": {
    "action": "Update",
    "entityId": "952196459",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x8a28c36c11ae5d5955d9d710be755510745f8222c2ab45376f81b9f216bf8006",
    "signature": "0xda4ac0f6fe34e914f86cd41fd1cccd56a7edce5c7301c15b8400e00412ea3f5457b712e7dc41765d67f21e073a2922adc31cadce269f1e97fbba0788b632a9401b",
    "signer": "0x89715A6F0c23C84cE71166083899D25bE26BfBC1",
    "userId": "952196459"
  }
}