{
  "manageEntity": {
    "action": "Save",
    "entityId": "860270164",
    "entityType": "Track",
    "nonce": "0x55c2bafcaab5fa3712e2fcfb719734266692ea93ae3e8230e5640c47110294db",
    "signature": "0xc1526f5e67c63ff1bd196ff6ddf9b682b11ac02ac6afe369a3e88b19a0859175407eec766bf1aba5576cc0955ac2055b6d1b3eb10b00e564ac79ecf7e2b835ec1c",
    "signer": "0x90CBf7c9BBF688fd9Fa4029B96e1BC32b270cA24",
    "userId": "711459379"
  }
}