{
  "manageEntity": {
    "action": "Create",
    "entityId": "127443165",
    "entityType": "Playlist",
    "metadata": "{\"cid\":\"\",\"data\":{\"playlist_id\":127443165,\"description\":\"\",\"playlist_name\":\"My 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": "0xc35cc3e97064ebc4e08dd20490de17d783ef5ffe5ddb907ccce0d1ed5e571bb1",
    "signature": "0xf235654c3a128a8b2c721a9107f46d5cd11365b758e56bfa14a1d31e16d7a7b76f65a5ba3ae4b6e182d3ac24682e58c50a626e338f3ffe41e457ce992cbe8d5e1b",
    "signer": "0xA4f8F04aea91a96555C278a3F006Ba7b6be12A69",
    "userId": "739209316"
  }
}