{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x8a0cf3703efd5ce980ab9b7334118547e8fe5bab7ffb5163095974ffe789ca83",
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  }
}