{
  "manageEntity": {
    "action": "Update",
    "entityId": "234632837",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x90453759c3ea490d4d2538df130c096e71581d539ad8ab9971657398d12da1ab",
    "signature": "0x894b7207d77f91f65a35b394339dd6c0f8b38aaf52b84395489ab5c8496847474e5992f1a38e3cd027dea188c50cb780522367288fd3edefca02664a72cd87421b",
    "signer": "0x8bf0dC9fa6Ad8F832405194cB45F23cedA3e9486",
    "userId": "234632837"
  }
}