{
  "manageEntity": {
    "action": "Save",
    "entityId": "1925210265",
    "entityType": "Track",
    "nonce": "0x45987941fe92641ddfa66cef4d56442751305f250b8673a1e3b3c0f845066b8c",
    "signature": "0x6b35cad815f3443786af5bcc3df6f700673e6ecfadb0a7a748a8619c922ec580592878f6cc21b8f3da36e88e415d12bbbd7b329e0eb17ee72c956abbfd04f53b1b",
    "signer": "0x262a2A1c96da0dFD6f33595c8D775BefA860d02e",
    "userId": "486490947"
  }
}