{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xb9b30c8d5ff5eed32b9048e5b9369d448cdc74d5384bc461cfc8d8974e3f4227",
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  }
}