{
  "manageEntity": {
    "action": "Save",
    "entityId": "65260",
    "entityType": "Track",
    "nonce": "0x7e1c792bf185ca27d5636da5660622fdcb6da9a3e1f243522157032d4636190e",
    "signature": "0x23eddd83ce92c111a36294d38cb00545c987862f8db8894610d50c56869201706f11bce995bf8b9bf6f05c53245f8b5db0b7511f81c149f29b8a589ba474f0671c",
    "signer": "0x7425EdbFdF528603A88c658f4cf8B1396a8a77F5",
    "userId": "406225571"
  }
}