{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x1c36ccb3eeaa57394253de3dd04603289f94e963cfaf74b2a8a9fa0064f34878",
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    "userId": "725409163"
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}