{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xb464495d4853766a3ae1314ab44fa25e615d1d8f814bac86cc9f8ba77bdefe65",
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    "userId": "528922452"
  }
}