{
  "manageEntity": {
    "action": "Save",
    "entityId": "93763447",
    "entityType": "Track",
    "nonce": "0x35838ed8d8af79615685ecbe419a323a2e6fc972992f301fdd3301a282d69e6f",
    "signature": "0xe23b71e35337d275ade6ab61ebd7707a4a7fd5e06ec02928e08226ef5e23077874560ec636cefbd30677970af435313d3c9a2ad3fa5382d3a0462603873851031b",
    "signer": "0x243A439c272133AEEE0073AF4986dE391C430866",
    "userId": "77551267"
  }
}