{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x229b2f663d199cac7bef40b38ccb4c3c3bd14551c79840924592a318a51f413c",
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    "userId": "854107880"
  }
}