{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x19a9254c9b5f35c995b15ceb676ab14270ed99afa27d8eeff5f744251a3fa727",
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    "userId": "620750819"
  }
}