{
  "manageEntity": {
    "action": "Create",
    "entityType": "Grant",
    "metadata": "{\"grantee_address\":\"0xf327a13ad819f02abcc7fcee5db0bd0b828e710c\"}",
    "nonce": "0xe7ab81d6f962e3979098ad72fabb801ade9afb4b437302159f9e63af00e0a670",
    "signature": "0x47f23a63f126697cabca9e0fdc5fb2fc5a52c92fb073e14baeefc2d90c593e436d984918d93cf489495b8820fca6021890cf4b90aa33762d7f906131296571341b",
    "signer": "0x49c93778Fa353464C1ED4aCD775a55cD36F28241",
    "userId": "477172274"
  }
}