{
  "manageEntity": {
    "action": "Create",
    "entityId": "838759487",
    "entityType": "Playlist",
    "metadata": "{\"cid\":\"\",\"data\":{\"playlist_id\":838759487,\"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": "0xece4fd4b880167ebd0986cbe995c1af978f5ae10d478e4a9378b636fcd17ba97",
    "signature": "0xec6ed2674c712d8d095aaf00927b547649dbf82764513c835f9170928cd760c90e6142d1c018160e236a4086e3a576baf7984529cf0e550bbbe7857a4cf28b2c1c",
    "signer": "0xb1B6758E0F16Ff306fc9054B49d73834a7610ACB",
    "userId": "912925478"
  }
}