{
  "manageEntity": {
    "action": "Save",
    "entityId": "529501441",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x66b9889bc54a5df1ce374e007a98ba121fea607f8ec71dbde1419acd9f8c6ba4",
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    "userId": "35251"
  }
}