{
  "manageEntity": {
    "action": "Save",
    "entityId": "2032571375",
    "entityType": "Track",
    "nonce": "0xa709467dadc22410f77ab3e9ff0dd21feb1821339d4b96eb55c4e3dfc32ee164",
    "signature": "0xdb882590c47c08b43a2ec7988c8cbb79ca6207ca06e431d139179f20f9fb1f1354473bea6d0040b4b0ea106d851a0c49a5414177206ab30ba07a00bd6ce0717b1b",
    "signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
    "userId": "714646433"
  }
}