{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x0b40791bf013e370a57219b4b4203926b231386fc0efde98f13b98d24f695702",
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    "userId": "958150326"
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}