{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xb18d53b622609522741f4a5aadf1f21f592f6f992fb185a13b1deb8eeaf2d36e",
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    "signer": "0xAd82Ef9050D99ac33B4b9De68d265E5Ca34c64fe",
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  }
}