{
  "manageEntity": {
    "action": "Save",
    "entityId": "22860",
    "entityType": "Track",
    "nonce": "0xd89d8350ff86385e344dc358073a20563bc8c0e39efda1de4a0f6a5e45ed68c0",
    "signature": "0x6d480444a15f32784a34372ce11121c8358f4c758424e3c89913ae13ceb256f951d465bf46ecb5c343d29e96f6df69e0e352eeb8ff592873a9006aa383c77f461b",
    "signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
    "userId": "714646433"
  }
}