{
  "manageEntity": {
    "action": "Create",
    "entityType": "Grant",
    "metadata": "{\"grantee_address\":\"0x2cc593fc814461263d282a84286fd4f72c79562e\"}",
    "nonce": "0x58898aa550dc9e4d8c9993c746ceb11f1d7ce7de4837bcbfae1eec7c9a0e673f",
    "signature": "0x2a5fd37068e2005996ae8977cedc60c04c2679b81470a4632b666af319e691ec7ecb4cb109d8e867f6cc0e01f6b4f001ed299daea0b1058cc1cb5ac0582b4cf91c",
    "signer": "0xE599d8C733bb0092e5914a5dF9c81cA161B61444",
    "userId": "474265707"
  }
}