{
  "manageEntity": {
    "action": "Update",
    "entityId": "230937295",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaierarngpxhzcbel7qt7shas4wbq4i5ccsqtsiyilvaaeftaviiuk7qlq\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":2003553302},{\"type\":\"playlist\",\"playlist_id\":312386954},{\"type\":\"playlist\",\"playlist_id\":1938881697}]}}}",
    "nonce": "0x422650fcd0a801e6c54a78ef256011ffd16fd8deef1e6b01a8868143a8eedd7a",
    "signature": "0xdc5e53339cc0725937a8c650816540466ca413b4b66fab1147e51685c6b6da925d8faa4142be078ec9fd1e96021681b9bb8cf8b962179920b0f71334a0ff414b1c",
    "signer": "0x4859cb73a2827537B204400dA4826114041Ea722",
    "userId": "230937295"
  }
}