{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x486b6023555f551ca10f9a31b4b0d792ed1adb541702054b4c13bc2c1cc6879c",
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}