Get transactions of a voter

Example response

{
  "items": [
    {
      "_id": "5c24a189ff305840a2498bf0",
      "smartContractAddress": "0x0000000000000000000000000000000000000088",
      "tx": "0xf8f2d402c6b1cb5f891b687d69ddcd920e58d9e9fe002857cac0e7ce47998884",
      "event": "Unvote",
      "voter": "0x487d62d33467c4842c5e54eb370837e4e88bba0f",
      "owner": "",
      "candidate": "0xfc5571921c6d3672e13b58ea23dea534f2b35fa0",
      "capacity": "10000999000000000000000",
      "blockNumber": 763397,
      "createdAt": "2018-12-27T09:55:21.000Z",
      "__v": 0
    }
  ],
  "total": 100
}