{
  "manageEntity": {
    "action": "Create",
    "entityType": "Grant",
    "metadata": "{\"grantee_address\":\"0x2cc593fc814461263d282a84286fd4f72c79562e\"}",
    "nonce": "0x83538ca4048c091cf868b4ae385e3a30c44f671d59e5f8e5143386e4bd86b9cb",
    "signature": "0x1c8525d897bc5db6ab7052afd2c468c04bf3ec652c1e33b93d4984646dd3b5715c71bce0239d4c352f5c5758a32177d3911f57ecf6ef18aeaf64b88432026baf1b",
    "signer": "0x28f433d3448A50Ba35a22dC19d0FB9D01685EDB2",
    "userId": "469788596"
  }
}