{
  "manageEntity": {
    "action": "Create",
    "entityType": "Grant",
    "metadata": "{\"grantee_address\":\"0x922cb2ae695da9f7dd0e556954c23eeeb8bffe0e\"}",
    "nonce": "0x1e7f9899a246c71f90c2a60e8b44c1006a6d89ebf79dfb93b4e4accc8973d390",
    "signature": "0xbbb2e155bd589d5bf88835981263b90dc01d250a17e2d3fd126402ca5a1008da0205feafe459a2c7a940ba1f77c3d0a08751441de8e30db4f65c856357b241281b",
    "signer": "0x7218A0B8E2E7027fAD6E14A85720FfE12a6db4BC",
    "userId": "411959411"
  }
}