{
  "manageEntity": {
    "action": "Create",
    "entityId": "2124203330",
    "entityType": "Playlist",
    "metadata": "{\"cid\":\"\",\"data\":{\"playlist_id\":2124203330,\"description\":\"\",\"playlist_name\":\"New Playlist\",\"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\":[]}}",
    "nonce": "0x4a3f1d847f289ddc23a23c6687b673c054462fad1d1625e90eeff033da609be3",
    "signature": "0xf493daee4550fd02bb81b3c7a9437ff7e117fa72ebf30e82758811f006abb7295867e39548395142f2c3feefdd4ec55106281781d3adf645a8abb618e010bad81b",
    "signer": "0xaDC9D4604F02A3d510468234256a0815f96F0D3C",
    "userId": "198890948"
  }
}