{
  "manageEntity": {
    "action": "Create",
    "entityType": "Grant",
    "metadata": "{\"grantee_address\":\"0x2cc593fc814461263d282a84286fd4f72c79562e\"}",
    "nonce": "0x87e00afba8bbf8464374b74e195a39529e8207af33074e83c61cf4ce1e8219fc",
    "signature": "0x655c2ee3865bde7c7c8776ec5ccef69f93f4e9ace680a5ce496f637c1f4ee7417036ea903aaca9f4afd2dfb7532498665a797b7a6c2e701f41e2b57a85624aa21c",
    "signer": "0x3f5ccdf2ae05779f16F47753c223e03adf8E1501",
    "userId": "60521330"
  }
}