{
  "manageEntity": {
    "action": "Create",
    "entityType": "Grant",
    "metadata": "{\"grantee_address\":\"0x922cb2ae695da9f7dd0e556954c23eeeb8bffe0e\"}",
    "nonce": "0x2e3cb54f842d993a2b1ff16066c3fa68236aa0571724d67a99d918eb961b4486",
    "signature": "0x198b79ef2331dfd6ca8170620affe5caa0421c6435bd4772c558013e55b0d9e60177dbfd27dd4fbcea9dded9ed4af59e37b89f660fed2cee4d931635b404d0e01b",
    "signer": "0xf9B2e6c4AD8D7302B8CD57332e90D0C18d7C1522",
    "userId": "552421234"
  }
}