{
  "manageEntity": {
    "action": "Save",
    "entityId": "180482",
    "entityType": "Track",
    "nonce": "0x0b7aa9d1dc5da175b835de5351ddf1ce31a6921682ae0d23c1867d6a2e82c5ce",
    "signature": "0x4ab6345db5b889e80069f8c1f4ecf000f3220aa4116daf6a35764736a48857943879f5fba8909ba6d29b8b3bf572f02a2f175bbd888d7ce8aeb69354595de4341b",
    "signer": "0x73317E9D44b6E1b7d146760b12dc5546Cd140ED2",
    "userId": "683609933"
  }
}