{
  "manageEntity": {
    "action": "Save",
    "entityId": "2070534410",
    "entityType": "Track",
    "nonce": "0xcd247ea1a053f7e2e8c1f823924a2670186332bee15ef861cf07b578ec1fa46f",
    "signature": "0x79780954d60ef17663a2f6c816b8b5a89d366ba2efb4734820e39a6ed5f6d63240b7a60cfbf3ef55195b3ad5edb9eee842d3bbdfa97afd3e05c07f89872ab6161b",
    "signer": "0xd163667714DD20a7de7d09005b0A820B1b11aaa2",
    "userId": "841706200"
  }
}