{
  "manageEntity": {
    "action": "Save",
    "entityId": "178059",
    "entityType": "Track",
    "nonce": "0xdfb57547cc08cb86632b1c0511fb4bb9d481035243376a16a8e9c0fc6cbaf0ad",
    "signature": "0xd072d06abd151fbe26e9336fa498a8659396753e7c524288c68599c27abb0c6a4fad15433e1e207992dfda3636a7ffe8a18e38711f120d06f19a8eca9bb7525e1b",
    "signer": "0x06F989586c5477333A41f6057f224Df79903862a",
    "userId": "24240642"
  }
}