{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x9f24e573dd5bcdc23d9a85442e3f1defa3d28549f7d7411f9203e4bd2b534fe9",
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}