{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x68e1837caa450662b95f4c65993769e71461097e64324e3b5724633e219da9b2",
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  }
}