{
  "manageEntity": {
    "action": "Save",
    "entityId": "1097096",
    "entityType": "Track",
    "nonce": "0x15d52a84cc0c1635d3b127b5264f78d520c901dbbccd7605e1562f5d7f24edfe",
    "signature": "0x63aaaeb759014d62385f826cb6a003dc9c4a6b9b676dbfef942d00d9b065b6b568810b16036fbdd060e0b0ef2aaaf95e3bef76fef7c21ca8bb6395cc533882af1b",
    "signer": "0x243A439c272133AEEE0073AF4986dE391C430866",
    "userId": "77551267"
  }
}