{
  "manageEntity": {
    "action": "Create",
    "entityType": "Grant",
    "metadata": "{\"grantee_address\":\"0xd5782ebfa75b52b3f32428715d7e7e3ad4c717da\"}",
    "nonce": "0x719f511a161fa2ebfe88b873309fc88b9d51adbfb9e5be2ba41968eedf519234",
    "signature": "0xe7c51e2c24eac3a0693a694d64da4f7bbed6f42e355e9cc3cf4c88a38d562aaa3ad82752cdb323374981db153de371014b5fcbd9307f808791f2fcc9531b38751c",
    "signer": "0x461f50A3fc0AA622131648471C182e53ad62eD7f",
    "userId": "212312873"
  }
}