{
  "manageEntity": {
    "action": "Save",
    "entityId": "1127638662",
    "entityType": "Track",
    "nonce": "0x684304c99bd31df0a09d8c866db1770a2bea6b3fae0c1d75acd7de41819f5ed1",
    "signature": "0x85a5cee3e8d9c35ddccb4c6469e45e70b4a5ba7b10b4168c05f370aac0b7c1fe3b4c99ad52b00cc891bb3f8964923db8575edcde3feced1b91a612058d7828fa1c",
    "signer": "0x316933E449A0b429014E405447c447C9Bc472bE9",
    "userId": "451684863"
  }
}