{
  "manageEntity": {
    "action": "Save",
    "entityId": "1007482667",
    "entityType": "Track",
    "nonce": "0x7e37737f9518cb1d537c2e894e0e72468d160a087c7a0f17834f1bed56ba8beb",
    "signature": "0xd1fdfe13064d365e37799dba6e685dac391f659b7299289c12eaafb82150204a43c781c8f2a45115bb14deb49f21e53ef34c5ccc85ceea615071e7b20e60f40c1b",
    "signer": "0x36d29AA5C780341f3b35bDE6c1411a7Abcf8794C",
    "userId": "571117272"
  }
}