{
  "manageEntity": {
    "action": "Create",
    "entityId": "149966675",
    "entityType": "Playlist",
    "metadata": "{\"cid\":\"\",\"data\":{\"playlist_id\":149966675,\"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": "0x80a66305badac7f7180e7c5003caaa788d5800edeec880be4ef5691e0cc861e7",
    "signature": "0x7566d9da6f7fc0b2661857f9acbee31a4859399f879ad53ec1ef4abff5a1c5f120336596f35d8fda6b32de140f65eb9e4c5038b8274ef2a21fb7f1ca824c46821c",
    "signer": "0x685c86760D3c967538c225355603902597f5D411",
    "userId": "648022498"
  }
}