{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xe6b331164ea95aedf1b6f0b9c58f5eedd7a4fc0a7c762e316f0665d49975161c",
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}