{
  "manageEntity": {
    "action": "Create",
    "entityId": "658416609",
    "entityType": "Playlist",
    "metadata": "{\"cid\":\"\",\"data\":{\"playlist_id\":658416609,\"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": "0xcff4645378068b91c192e2ed3b313d147509a5afaff2f76f3170345f76bc587d",
    "signature": "0xc2f03f3749771de985225e98020dc89cfb0c8b0c413bbfdeb8908cc3ff59631232e9b10ae209f545c6e307192ab428a6508eb2ae5360c99a2cb2e2348d310b331c",
    "signer": "0xA21b45B80cA89EdC19365C5f9B50d82051294192",
    "userId": "326767831"
  }
}