Finally, added BlockCard

src/components/block_card/block_card.js

@@ -0,0 +1,21 @@
+import BasicUserCard from '../basic_user_card/basic_user_card.vue'
+
+const BlockCard = {
+  props: ['user'],
+  data () {
+    return {
+      progress: false,
+      updated: false
+    }
+  },
+  components: {
+    BasicUserCard
+  },
+  methods: {
+    unblockUser () {
+      this.progress = true
+    }
+  }
+}
+
+export default BlockCard

src/components/block_card/block_card.vue

@@ -0,0 +1,16 @@
+<template>
+  <basic-user-card :user="user">
+    <template slot="secondary-area">
+      <button class="btn btn-default" @click="unblockUser" :disabled="progress">
+        <template v-if="progress">
+          {{ $t('user_card.unblock_progress') }}
+        </template>
+        <template v-else>
+          {{ $t('user_card.unblock') }}
+        </template>
+      </button>
+    </template>
+  </basic-user-card>
+</template>
+
+<script src="./block_card.js"></script>

src/components/user_settings/user_settings.js

@@ -5,13 +5,13 @@ import TabSwitcher from '../tab_switcher/tab_switcher.js'
 import ImageCropper from '../image_cropper/image_cropper.vue'
 import StyleSwitcher from '../style_switcher/style_switcher.vue'
 import fileSizeFormatService from '../../services/file_size_format/file_size_format.js'
-import BasicUserCard from '../basic_user_card/basic_user_card.vue'
+import BlockCard from '../block_card/block_card.vue'
 import withLoadMore from '../../hocs/with_load_more/with_load_more'
 import withList from '../../hocs/with_list/with_list'
 
-const UserList = withList(BasicUserCard, entry => ({ user: entry }))
+const BlockList = withList(BlockCard, entry => ({ user: entry }))
 const BlockListWithLoadMore = withLoadMore(
-  UserList,
+  BlockList,
   (props, $store) => $store.dispatch('fetchBlocks'),
   (props, $store) => get($store.state.users.currentUser, 'blocks', [])
 )

src/i18n/en.json

@@ -366,7 +366,9 @@
     "muted": "Muted",
     "per_day": "per day",
     "remote_follow": "Remote follow",
-    "statuses": "Statuses"
+    "statuses": "Statuses",
+    "unblock": "Unblock",
+    "unblock_progress": "Unblocking..."
   },
   "user_profile": {
     "timeline_title": "User Timeline"