{
  "manageEntity": {
    "action": "Unsave",
    "entityId": "611722",
    "entityType": "Track",
    "nonce": "0x734910ab10310e029561893b8fd979e3f856cf0dffc54c584f6ebfe582ac4f61",
    "signature": "0xeb3de7f7714a400470e68af40f5e5a3d8d4b263465a39b4794efecd341608e9c4a12862715632036f0d02d62c99936799f47a12f06a427891b84d448e5d7a11a1b",
    "signer": "0xCD8Ad6BBF16D2B91C83B8C5b2Fc6b5e6f28d1825",
    "userId": "334015"
  }
}