{
  "manageEntity": {
    "action": "Save",
    "entityId": "872572240",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x0a6500b24b8afb5481bc9665a25996504917f3f68740d368fc876210966d775b",
    "signature": "0xe6505155ba1b41b8e55930f43b88c29a81aec2810c8d227c5c56bd6b8808d69d2fa84691c1b4114412afc5c16b98acb2d45e3d63aa26a85a59c7f5715aca6bf81c",
    "signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
    "userId": "714646433"
  }
}