{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xe7caed28c5b305270677b82a84f70a4b92f322e0a5ec6f1ea4024fa323edf187",
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}