{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x91fd7e3540d02cc25d7a7169c06ca7072c67ee5b282e2dc0c5c8e4e151ea05a3",
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  }
}