{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x6b18be756f9a7cc39f7c67b5b36f6a51f00d03ecaefa745c05cee268c234c7b0",
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    "userId": "239704741"
  }
}