{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x998ed387bbe7bacaa01b3dc7ba2b92e4c852e3f84af1299dc249ce1d6c549810",
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  }
}