{
  "manageEntity": {
    "action": "Save",
    "entityId": "1026591937",
    "entityType": "Track",
    "nonce": "0xfdd1b4f27d6247ce5cc85728e22dcad5ca1c3cd6df98e0ec715682e00c071a74",
    "signature": "0xa5f1329dfc635e8c828a6f1966c8dfe0eb74007e65e2f2b5f1eb8decd387c0ae59309c625640f1ba3746d8f84e824caf461aebec1b8dbe3cefad4afa9b2fcffa1c",
    "signer": "0x59765b22C96E88dA578af23E8611d6ca2dcCd7C9",
    "userId": "377610060"
  }
}