{
  "manageEntity": {
    "action": "Save",
    "entityId": "88022",
    "entityType": "Track",
    "nonce": "0x0f91326c3f270472f984d411b73bce5009c0355765a6e645abdd5e5f3ffa049c",
    "signature": "0x4db34602cc573db1d41c6f15f9d84375c3fca11b82400a996dc889ea45080f290ab400ab160b06fc5dfc13dcfaca596bdd7745a5939eb4b29066920f284fb1041b",
    "signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
    "userId": "714646433"
  }
}