{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xfa94552d7102cc1251bd2bd0e1003e765e8333ba5aa3d674cf1dbb3556113929",
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}