{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xd2f8448066348c160509fe5077368ce0e4d04122d8c6c8ddbc5a9bb35873c559",
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    "signer": "0xAd948EEedA4AB2d06bF3150Daf2D25De733e7Cd5",
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  }
}