{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xac6b46c8341565a8fd14d1b8a1c82950925776278e3529ed8e657690c89c6279",
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    "userId": "533673360"
  }
}