{
  "manageEntity": {
    "action": "Create",
    "entityId": "2105057533",
    "entityType": "Playlist",
    "metadata": "{\"cid\":\"\",\"data\":{\"playlist_id\":2105057533,\"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": "0x1d02ada15eb1d8280124e012eea7a1f4a5a965be79710c68d02688bfab86b4c5",
    "signature": "0xb9908d1a73c0558dc2b653cfeb848ff76f55a295a51958947eb652e4b3504bf1307470b491ce4f280bf53220e3bf88ef22b0187bca252adf319d83ba8ec031f71c",
    "signer": "0x21e530f5EA8E24d2476C3Ff8253D151693719385",
    "userId": "854449345"
  }
}