{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x37e7c81d6bd2b7a61872282ce6a794a097f7ae5fa4da50e4c186ac7b8553ee88",
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}