{
  "manageEntity": {
    "action": "Create",
    "entityType": "Grant",
    "metadata": "{\"grantee_address\":\"0x6c1ef2e9c33e2ba1c0d352e41e06e8a3c7721c6f\"}",
    "nonce": "0xa8e9f4365845f950e5990a9f28bdd0bcd3b4a216217a67c4efa2462fee38ad96",
    "signature": "0x2273fcfeedc6febfffc15ca681871d990885efb1d4f97f609158e8186e9c01241a32d0cda6d053d875d9c661436f935665bbdbdbf25cfce5f871982d1ad91d8a1b",
    "signer": "0x2a6bc249A75e034D82D1862b9C974a4BfE99f419",
    "userId": "302766860"
  }
}