{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x3a885483635f51f21355152081592b573b82b16ff8a28b24e0a87e0562922875",
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  }
}