{
  "manageEntity": {
    "action": "Save",
    "entityId": "1706628226",
    "entityType": "Track",
    "nonce": "0xb11c0a9a5fa48685cb765068f2e1b4aba7effd328768d399980727403c02ec59",
    "signature": "0xdfc9ef71171422663434dfd5955a8649280db17cf804d4b439d9222f91cb91d57852c7a5a15fc6e7615d5e60a5d66d721c2a47ae80b77a27d2b38013a26c472d1c",
    "signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
    "userId": "714646433"
  }
}