{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x3c4a2371caafc4485ba4b07dabdc18ab41f0a3c89a04568292d35afed644be83",
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  }
}