{
  "manageEntity": {
    "action": "Create",
    "entityId": "509823680",
    "entityType": "Playlist",
    "metadata": "{\"cid\":\"\",\"data\":{\"playlist_id\":509823680,\"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": "0x2b04de4a905fad3ee78d0a1e3113e8503e1ef147402ac0f2be056ac7d822817f",
    "signature": "0x089e50e5274e141d1a00bfac3a6ad2b742e8fce6eba65839611daf08b767ab5c2b443d9b23d67d5f4a06dcec6aad3f4860386d048090d64db8f00040c147d13f1c",
    "signer": "0x803cAa47D9F525D1180159ddCAC9575061b200B3",
    "userId": "1415762"
  }
}