{
  "manageEntity": {
    "action": "Save",
    "entityId": "1767653012",
    "entityType": "Track",
    "nonce": "0x28342955b094b0788aba4493e3f41c289ce55960323a26a6ee0a3845b9d0bf5c",
    "signature": "0xe64228bae61c5ed504cac456dddc32e500fe46ecb79e35fdb6a6bfe5f07300aa3efb55adcecdf520f9c058a81ee990e6f217c4e3c5178fbd59233bcec11bb7121b",
    "signer": "0x262a2A1c96da0dFD6f33595c8D775BefA860d02e",
    "userId": "486490947"
  }
}