{
  "manageEntity": {
    "action": "Create",
    "entityType": "Grant",
    "metadata": "{\"grantee_address\":\"0x2cc593fc814461263d282a84286fd4f72c79562e\"}",
    "nonce": "0x3989ba6bb52584afdcb04c2744a0c9b9484c210d7ba8d1c67c2d606b837c28a3",
    "signature": "0xbc4e0b94a99d34189cc6e26185fc040cfbea2f06ab998a8c0a90089b3fbb41f26b3825f329aa4dd86d3a0c1875c7e6cf9f5c213624836b88233bccf7f61557161c",
    "signer": "0x4A71d906D785Cbf2A42dC38c23df759007579180",
    "userId": "68204378"
  }
}