Get voters who voted for the candidate

Example response

{
  "items": [
    {
      "_id": "5bd924a9aa41b819395d9207",
      "candidate": "0x11621900588eca4410c00097a9f59237f34064cd",
      "smartContractAddress": "0x0000000000000000000000000000000000000088",
      "voter": "0xf2cce442c7ab5baf194838081b5f9396330ecfb8",
      "__v": 0,
      "capacity": "105000000000000000000",
      "createdAt": "2018-10-31T03:42:33.922Z",
      "updatedAt": "2019-01-05T02:11:31.489Z",
      "capacityNumber": 105
    }
  ],
  "total": 100
}