{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x7ce73263a03f993d9e9c90aab7ac90adddd808fcce59b71cf6fcba54890eb98e",
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    "signer": "0x5cf424b2E500Ce62e5776d2Fef3867BEA5A0b58E",
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  }
}