{
  "manageEntity": {
    "action": "Create",
    "entityId": "386488023",
    "entityType": "Playlist",
    "metadata": "{\"cid\":\"\",\"data\":{\"playlist_id\":386488023,\"description\":\"\",\"playlist_name\":\"this is for you\",\"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": "0x59f46d146f597deef6f95b3bdb8c22e0133332364b2ca58028fdbabafd817d56",
    "signature": "0xb7c180e68cea20e4f4bb9b24d6fb3fe56de56b0ef05e2b79b33b824ba34227e5776f4beddf42454f8c8a630e8ceb3a6c28f99b25dc32758145bceef457fcfbcc1b",
    "signer": "0xB1bdf4a1F5A8736A37D699426bA7dDe0aCDcdB58",
    "userId": "753535412"
  }
}