{
  "manageEntity": {
    "action": "Save",
    "entityId": "93564547",
    "entityType": "Track",
    "nonce": "0x119a2a136a873e28b55415c1a29860c879cd177e4910ff79605f777816e44737",
    "signature": "0x65c24d897b3601b8964c1eba1f5d560903a8dbc531737304f0176cba28d252d84f5e14743ca7413b356fcd916169ee4490f8ee79a0285bde98f7d6344e93d4441b",
    "signer": "0xbF4F1f4df4779768AfE75515b1552a2Bc5b4Dd32",
    "userId": "100976759"
  }
}