{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xa292404ad4afa26502799da8429bedc8c67ea92766f19f9bdb74651f3387fde5",
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    "userId": "488342280"
  }
}