{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xace2494fd15136fac25b6476acee6841cc54c2fb1be45d3e3bb2ee31ca67e6d4",
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    "signer": "0x6802Fe39C5FA9f99ac1Aa32F164982185A3E70ea",
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  }
}