{
  "manageEntity": {
    "action": "Save",
    "entityId": "125095",
    "entityType": "Track",
    "nonce": "0x0cec308738f9848903075068f4544196094d7fe5b8bf5ee534d12203d1f286f4",
    "signature": "0x00b35598dfa01cd3dc8da644db25634c17e80c654a60e81004cb7189aa1dc0a0315ce15bbb7994ba1808ef0df81e9025d1941da82661f95489ccfafa84c7e9901b",
    "signer": "0x283a6Fd0bE176865B404dfc3B2805D3a2701d62e",
    "userId": "484365174"
  }
}