{
  "manageEntity": {
    "action": "Save",
    "entityId": "2084430227",
    "entityType": "Track",
    "nonce": "0x9080304bd63efa14ae581527d2451887a72d73f4f97e59deeaf3476f16eaa103",
    "signature": "0x81d19ada8f547fcfd273456f5707e1706fb13b13fc35015bb46d879ca7f87d9430c4a53fcba4072f8cebd890e78ed7b740c7ed81b10c7927e481ec9631c851811c",
    "signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
    "userId": "714646433"
  }
}