{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x32d4d93648b8f5171a07a9594507d4a8b58ca5cc3d77d32c8858714c77f64c60",
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}