{
  "manageEntity": {
    "action": "Save",
    "entityId": "80015",
    "entityType": "Track",
    "nonce": "0xb84d62fdb9fc8c16bb4cb73b9584134b3ada39c5232969ada08bb91648c42ee8",
    "signature": "0xb02b711c496193a2ed115efe32273e31b0a1329e7aeabdf022d73757c9a34306279cf0f17da85780b727884601faf2f41dcabd2960286c2ede2a8718a64363f41b",
    "signer": "0x849938DF063059EbF6d907f55E72C083347C9343",
    "userId": "796529120"
  }
}