{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xcac3427f4443432b15940256174cdb9eba8bb30f74c46029c23d386b594cc90d",
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    "userId": "764368248"
  }
}