{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xe165931741f72c95874e10f3b5b7de1f63cef8fa898006a20048b7cda7ce8f66",
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}