{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xa81a90c7f323b8c07f491b23151cfb220badc7cfe41c6b800604d6e4dddb253a",
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}