{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xc43d4f9d47ab04af77db59e0b0f94f935def3f2e21c98e4f08ce828324918f79",
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    "userId": "848916925"
  }
}