{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xf4f887371b3a5b157ddb791c1b4ccef57610f586a2a799952d7cf8be4bedbba1",
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    "signer": "0x5ccB3DF813bFcd4B2361236a8Dd1282A6dA39B79",
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  }
}