{
  "manageEntity": {
    "action": "Save",
    "entityId": "4357",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x9ec1cc148e5eee7319cd4993dcf024125642ddc24ed7f8bdc37b47d6fa2d2321",
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    "userId": "909822926"
  }
}