{
  "manageEntity": {
    "action": "Create",
    "entityId": "43642345",
    "entityType": "Playlist",
    "metadata": "{\"cid\":\"\",\"data\":{\"playlist_id\":43642345,\"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": "0x7cf99bf108b1e190d7f1a36da37fc8f2fdcd85170056fee32130a3831f8c949f",
    "signature": "0x9e7143f7eb6d7afe97f532c2b2e901ba5847d7498bb2726a65a1ff7a53838fc72398fe94a156059f2acffbdb20187c2737049865be7231b24571772f8a69e9d01b",
    "signer": "0xF8627E429A403b91c989b9666bE2168Fd2E467c7",
    "userId": "971403408"
  }
}