{
  "manageEntity": {
    "action": "Create",
    "entityId": "1354356673",
    "entityType": "Playlist",
    "metadata": "{\"cid\":\"\",\"data\":{\"playlist_id\":1354356673,\"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": "0x7071134bdf6a0e0cebff60ac7e7c4bfe3120e9b3c9e40d66b75d43e6345f2e70",
    "signature": "0x7c1d594209d1d8f39082075d6aeeb9ce6fa7a23ed35d64633588d6d5393a7e444b3be9f6e0273b7ca76da2668296982ee252a89eef9bcce4474248e6ebc497a31c",
    "signer": "0x39b9f428c41489717f21E4BD8047647B53735281",
    "userId": "980027720"
  }
}