{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x8448cb87b372768d76d46f9a1e58eef0fb474c38dd3fbc48ed6424e81e7f49d6",
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}