{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x018c0762803ddbf76a2101de21e4a0f4ba0bb734edec0dbbfab1b5fd0c480b48",
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    "userId": "176059460"
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}