{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xed77e1eefa822009cd2374d9da1db8a31fc00ae9012ca89626da9508e7347b24",
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    "signer": "0x9A0b71B0Cdf25140e5999C5aB2fCda985E5B0a7d",
    "userId": "269528369"
  }
}