{
  "manageEntity": {
    "action": "Save",
    "entityId": "2036840726",
    "entityType": "Track",
    "nonce": "0x3ab4fb9adedd8735b3031638fd9de7482164d01b08c927a6dcf9bd0854460735",
    "signature": "0x7130e795ee1384729adc188c62f8382cbf15ae693efa406c9a39cfeff0fa5e8f1b5fe85b77355b15b7cddd31764e19eff4fd75bc010dfd9c2a0abebdc6319d861c",
    "signer": "0x40aE1C539711FBaE3930131b028D9c764fD8EaCb",
    "userId": "35251"
  }
}