{
  "manageEntity": {
    "action": "Save",
    "entityId": "128597003",
    "entityType": "Track",
    "nonce": "0xa22589f2bbf9e02f54689ba709eba9f955f9d20ce562456cbb60644732b9d9e1",
    "signature": "0x0c093dc4322e2b96fa22b78862c96ecf8b33f3ad0a883aa633e8990006080d3a4b33a42f7d6592d2d64a29ed5d6650d85c4089980c61891d2557c91789d00dfd1b",
    "signer": "0xEe44F982E97790DE653b22c104a56A48456Aa9EE",
    "userId": "589175136"
  }
}