{
  "manageEntity": {
    "action": "Create",
    "entityId": "1918405798",
    "entityType": "Playlist",
    "metadata": "{\"cid\":\"\",\"data\":{\"playlist_id\":1918405798,\"description\":\"\",\"playlist_name\":\"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": "0x3e1a226eee0d75b5b33e2f5dd71152b197385e090f5cd50b67ce05b38b1615a4",
    "signature": "0xeca2b61dfd5f854986fd596a2eaaf766810c69f216b43e1e201385005b393d307b8fed60e59dc6bc5095689e388715d3d4dca3a3dbf01463e9641b7a8b7838391c",
    "signer": "0x428df7C89b250770b2C984e1AFc3524CfB11738c",
    "userId": "410571818"
  }
}