{
  "manageEntity": {
    "action": "Save",
    "entityId": "1958089222",
    "entityType": "Track",
    "nonce": "0xdebe4ea59d181149067a9653f6b0ff2c08514ece1b4bd6a20c196a5e02db0b78",
    "signature": "0x04ee5bc6dd38381685a2ac6f10199d3d303b343233bde1ce2487f98eff438fa36115980b2fbeb91e951d21ac856eced030a39fc0ae62e0ce4f373627217630411b",
    "signer": "0xd1bC12b8b46f2FAa152aB791052b4a26826F86F5",
    "userId": "481080235"
  }
}