{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x434b7ddbcf5070efa2676a0b43ffc513c3be8c17307f172b0d238b6c5d4a848e",
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    "userId": "434221292"
  }
}