{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x2df423b3b89dce415ef9254a132ff02c30066d4ce22f08e1596264e5b0b3c875",
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  }
}