{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x5fbe95f93eacf34900516eac1099071f33d440638cc663ec8ac8147f91e81c31",
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}