{
  "manageEntity": {
    "action": "Create",
    "entityId": "386514362",
    "entityType": "Playlist",
    "metadata": "{\"cid\":\"\",\"data\":{\"playlist_id\":386514362,\"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": "0x8f08c090c3fd3647256e2d4e0a430a8b19c27ece786d1000d84c3fded643b70f",
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    "signer": "0xB90003df339139E8859c42e5B01FeeD18Bbd7CB2",
    "userId": "766266881"
  }
}