{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x21e3ac6ec07c1d53eb3402d2b5a9298a81f041549cb73e06dde3514d5143230b",
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  }
}