{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xdd7cafe7fd0765123952c7222e3b688104f2ac7d552c4520fa350c287dffb83c",
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  }
}