{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xb3d7cea0b5634938223f666fbab6f746634bd0a028ee71a1ba2ffa894e662054",
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    "signer": "0x30aB4fFaEd20Dd2ECb39C4c56ccbA39A1859a1C2",
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  }
}