{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x5f7c4c9e681bb09732d09d1bb265e6c6d574dd57b20c5ae2029bde531d1913bb",
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    "signer": "0x070CF9b957754d045c10eA9D937A777Ce3A3f595",
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  }
}