{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xa14c427b4ae91fb00d2a301da39c16fbee9845abee223543b129303641c4ec4e",
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    "signer": "0x27Af2F7CF8d7F7D7aD122912dA5a32cf307F090A",
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  }
}