{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x6f49f1e221b312b22fb3c63c25107775bd5c3f0ddfe4966cb4a3e9151a822555",
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    "userId": "776850188"
  }
}