{
  "manageEntity": {
    "action": "Save",
    "entityId": "2034008536",
    "entityType": "Track",
    "nonce": "0x1ad5cf1dc3c6c2c487047d2048a160cd61aa8d53c190438407bcf5ce107ec3fd",
    "signature": "0x4121597fd979826ea877ce2173eba08f7c245294a18c75753cef945beabbad36088b51c1b30af46152648cc5b6d466034e04329264c8491aa65bcdd0181033ee1c",
    "signer": "0x36d29AA5C780341f3b35bDE6c1411a7Abcf8794C",
    "userId": "571117272"
  }
}