{
  "manageEntity": {
    "action": "Create",
    "entityId": "1505183576",
    "entityType": "Playlist",
    "metadata": "{\"cid\":\"\",\"data\":{\"playlist_id\":1505183576,\"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": "0x489eac3387304f6241ff3cd55412035db012daca18322f5f54f99f25ddbb06d1",
    "signature": "0xf410c7fe46e9db92b129e4ec3f500496cccc92a94fc7927f9424d49c221edceb2d65d110b27b6f75cf860c390c23bceafa61c9fd658f4a1b09d410ed8e33f1d71c",
    "signer": "0x7Eec440C3674292A66f7e20C5E6efAeaE5956B9a",
    "userId": "18002392"
  }
}