{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x50e465b6d4421779c47b3abca44a29b5e11993204f5b8fb6f010327941a75949",
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}