{
  "manageEntity": {
    "action": "Save",
    "entityId": "1936065927",
    "entityType": "Track",
    "nonce": "0x469ec8bf95b459c5acb24abaa576a527b2f0fdcf61f7ab73797dbfc7be52ccc9",
    "signature": "0xf6346787df9516cf9aad0ec6d34742397d40c8b2f51c2d233b55a3e37b5ce5e26fcbac81d995f881a907c23db6857ef3bd38e7acb0be96d0f877149f62ac27981c",
    "signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
    "userId": "714646433"
  }
}