{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x62fec308c86af52d84f8197f5339dae7c4843c2bc0c9845dc9411d4c7cfb2056",
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    "signer": "0x7D991945CC4bCA9A06074D7026a35DFCDc160A09",
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  }
}