{
  "manageEntity": {
    "action": "Save",
    "entityId": "1093135653",
    "entityType": "Track",
    "nonce": "0xda6fc939f30848b2776a8b7611d110fbdf248ef66b11416b98cfd5f0af226ccb",
    "signature": "0x1d971658080cb9a12bb7a1db98f7afc3655bd3dbabbc30255c3c74e7b6ed8c5b2cd2f754685549657aee501606dc9536e28bae959e42e08ce94d9f0017749fc31c",
    "signer": "0x262a2A1c96da0dFD6f33595c8D775BefA860d02e",
    "userId": "486490947"
  }
}