{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x70571daed71a4cb81360b5f7fb3ccd42d18952bcfebb34edf7d272f5c52a7a8d",
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}