{
  "manageEntity": {
    "action": "Update",
    "entityId": "1270161678",
    "entityType": "Playlist",
    "metadata": "{\"cid\":\"\",\"data\":{\"description\":\"Test\",\"playlist_name\":\"Test\",\"is_private\":true,\"license\":\"\",\"ddex_release_ids\":null,\"ddex_app\":\"\",\"upc\":\"\",\"artists\":null,\"copyright_line\":null,\"producer_copyright_line\":null,\"parental_warning_type\":null,\"playlist_contents\":[{\"timestamp\":1780262174,\"track_id\":306888232}],\"is_stream_gated\":false,\"stream_conditions\":null,\"is_scheduled_release\":false}}",
    "nonce": "0x0b454c049ccc01bc79f11e9901cae4138d786550a7ac48ca78ac2787d039c045",
    "signature": "0x45f31bd8bf1cc250851cc4572bf3d28ee3088ef63b1f3c78474c80db515c59306014e68bd5aeafbdf1acfb410811cae1fe96096a46f09d09964088895cfc528c1c",
    "signer": "0xCaE1ee7dc4DB493ceab857fd89C09fA305C4c5d4",
    "userId": "648743045"
  }
}