{
  "manageEntity": {
    "action": "Create",
    "entityType": "Grant",
    "metadata": "{\"grantee_address\":\"0x2cc593fc814461263d282a84286fd4f72c79562e\"}",
    "nonce": "0xa9269f228a9e37d6780b85660d47891aef13bae06aef37fc3128c186788a5813",
    "signature": "0x79b163cca7bcdc405c0389ea8057c0dbe0b0cba60678bc1e6179b4d598d9eae31239f2335a5d6cb0bb0408116ccda6f68ee5ab868f17a3fa0cdbc02eba4b42161b",
    "signer": "0x8CEF152B0B15dCA40A82040Dd990c177D621BE5e",
    "userId": "157932357"
  }
}