{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xbc1446ce4adb58c9fefb1f72a15e1ac8deed22adaa7972a6545da18cde7f30b8",
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  }
}