{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x3b9ea4e6f0d4e60a64da73f1050fe8744dbe87d76ca1810e13114370b147e30b",
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    "userId": "423725296"
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}