{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x6e229a28c9a7a91a8b66c06824cbbeb41ff022cfd7778a4fec06b2774fef2bac",
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    "userId": "630030120"
  }
}