{
  "manageEntity": {
    "action": "Create",
    "entityId": "2004639148",
    "entityType": "Playlist",
    "metadata": "{\"cid\":\"\",\"data\":{\"playlist_id\":2004639148,\"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": "0x8f7c4ef11d81b1bc83b6dbba3ea71bff458e4aa9006de529d2e36efe7d7da2bd",
    "signature": "0x0b6b0b6926b91c241749b35e2bab4637f8006d00c8dd84af7d5469c62077083520439eb57994feb74a1c37da7946ec6ce088c1377109627bc504791fd8376f581b",
    "signer": "0x648B4387a313b9F9b1b70bcf05cB555C22F27B78",
    "userId": "839233202"
  }
}