{
  "manageEntity": {
    "action": "Save",
    "entityId": "1963400828",
    "entityType": "Track",
    "nonce": "0xecdfb0169fc857ffb16611527fa01c1d978227f30afdc593d58535e2728b986d",
    "signature": "0x74b7b3e01437b08592514ff30ea3b9f0ce33879f04d8cec31da2d90c725216585fd53f7b43fa5dcf807b69916dc20980a598d66d4098818926e4ba63fc7e248d1c",
    "signer": "0x06F989586c5477333A41f6057f224Df79903862a",
    "userId": "24240642"
  }
}