{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x9f89482b420195dcf3d370004a56c939e79001e9c79be193df34a8b777b0efb9",
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}