{
  "manageEntity": {
    "action": "Save",
    "entityId": "82852",
    "entityType": "Track",
    "nonce": "0x8be0e6e7601b1116962b22d34a1610eaf84c8ed4500791dd64b7e3494496145b",
    "signature": "0x06a17b662b5cb0e397987e69c8acc83da4a7bd202145d1c9219de08905b534e207464c1fc6492d4336ccb9213084e028f85fa868e8932b0937b544a3137419e71c",
    "signer": "0x95bc9101F0E3125Dab3b9e39ACc2b72eE7C8a02c",
    "userId": "380062588"
  }
}