{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x81669f3c88e5dcab743f7d36b3d2fad6f3d27ddea836e58bc8a9b8c491b41bdb",
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  }
}