{
  "manageEntity": {
    "action": "Create",
    "entityId": "1914805091",
    "entityType": "Playlist",
    "metadata": "{\"cid\":\"\",\"data\":{\"playlist_id\":1914805091,\"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": "0xe8d71ab6c8ea82a9cafea13e05b6bbf03a6b6ed2eff5802526c2eb20c623cf3a",
    "signature": "0x321fe7cfe6125e87aa6b13b23d993fd0bed546e406768d7850787176a96d9b9e0540455f7c31c66194f3e59ea8e0cb356bbdc8d9d579c38e1f0209d0bf0ba3b01b",
    "signer": "0xe878F0c40877B96B78bFD979D440c12577Ac22C4",
    "userId": "133916423"
  }
}