{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x6d4e81854d23b10d1e9f8d1609734afb49b7704a2aaf2be01202251e9b3e72e1",
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  }
}