{
  "manageEntity": {
    "action": "Create",
    "entityId": "1967575212",
    "entityType": "Playlist",
    "metadata": "{\"cid\":\"\",\"data\":{\"playlist_id\":1967575212,\"description\":\"\",\"playlist_name\":\"MONTAGEM KEYBOARD\",\"is_private\":true,\"ddex_release_ids\":null,\"ddex_app\":\"\",\"upc\":\"\",\"artists\":null,\"copyright_line\":null,\"producer_copyright_line\":null,\"is_image_autogenerated\":false,\"playlist_contents\":[{\"timestamp\":1776007644,\"metadata_timestamp\":1776007644,\"track_id\":1457866391}]}}",
    "nonce": "0x4170a97749b532dea21cc2021e03d1af59136adf3783d209f37539aa5595c141",
    "signature": "0x5f97d3b4297e51b7bc5a01a3125771b9378fb8088eeb263a35431dee6a57aa243a5d08695d34a1eec84cf2c8051a6ccc3da969e155f027470828a58c38b801151c",
    "signer": "0xF53e982fa81dd9765e1368E4E10371F6D4e4596D",
    "userId": "662401989"
  }
}