{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x13bd1a85fb01dcc4854b1bf0ea2e486841596db48cb86cab969795821f64f1d6",
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    "userId": "636236864"
  }
}