{
  "manageEntity": {
    "action": "Create",
    "entityType": "Grant",
    "metadata": "{\"grantee_address\":\"0x2cc593fc814461263d282a84286fd4f72c79562e\"}",
    "nonce": "0xac2962f231cf966291df45c5cbe064e05d00296d0ce4e886329140778d6011dc",
    "signature": "0x5a4fa27eb3c67ee760bbd1e8b77f4b6d5d9336f397edebc154132f7e3b4a229855462b3851ac1290ce2c5de4f25864a9edcf91ecc081a991c78c66c0d5a8886d1c",
    "signer": "0x3Fe8808E7459aEB6A6d0b9E53cf9179e60612f39",
    "userId": "205511238"
  }
}