{
  "manageEntity": {
    "action": "Save",
    "entityId": "87904",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x6ec71302bdad452b75ce2e2b0d4c28cb2dc412757e2ac1907b77ea6ffe57386a",
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    "signer": "0x1F5b327b06F23985a2eB7AcDEE087c4CE3F79860",
    "userId": "51270411"
  }
}