{
  "manageEntity": {
    "action": "Save",
    "entityId": "1735925730",
    "entityType": "Track",
    "nonce": "0x5513b64b65a4196bceb4d9b5510288dd19af33f1a70cf4f8bbc37ee2c188f654",
    "signature": "0xff05ab81c4cf4150e81881257460ceeab8e04e199204e999108382a03785cbc7037de505b78918a411ce7290497723b87088836661b08276fac6a23f026924021c",
    "signer": "0x283a6Fd0bE176865B404dfc3B2805D3a2701d62e",
    "userId": "484365174"
  }
}