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>