{
  "manageEntity": {
    "action": "Save",
    "entityId": "109063",
    "entityType": "Track",
    "nonce": "0xc81d224b63aecf425883d83772c70083667ea657aa9960d2de04f2607c4d79fd",
    "signature": "0xf364efacf23de384e7eaa2ce7e5839a2eeef059e84e0c56f480263de03e124e364d2a2d2e75e8d2d2efcd4636304579b343376e92617e08bb2b0dff52d83110d1c",
    "signer": "0xCedE64dcD8b0FdEDBdADF4b0ba433797eD6301c9",
    "userId": "638733607"
  }
}