{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x4c138f7dca1de4a6a4e847c0d6a1f8cdc6b4e799997c166b00893c59e07c8371",
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  }
}