{
  "manageEntity": {
    "action": "Save",
    "entityId": "1096142940",
    "entityType": "Track",
    "nonce": "0xc5432b805c1b4ac3105a18195b993016741001463ee1cbf4052902bdb1247a1c",
    "signature": "0xd567768f1cfd1ff68377da2b4f89c810061c7396346d7d706b5eeb8668e61b6926ab5caae11ee5ba16a2cfc2fd973e572ac30456e65fa73f1f662e7bd319d8381c",
    "signer": "0x262a2A1c96da0dFD6f33595c8D775BefA860d02e",
    "userId": "486490947"
  }
}