{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x3b02fb63a469da555e1b2a6a94bbd5b7d323f041cf7ebf711fa183d329b03690",
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}