diff --git a/core/modules/block_content/src/BlockContentAccessControlHandler.php b/core/modules/block_content/src/BlockContentAccessControlHandler.php
index d0c19c5..e738b3f 100644
--- a/core/modules/block_content/src/BlockContentAccessControlHandler.php
+++ b/core/modules/block_content/src/BlockContentAccessControlHandler.php
@@ -19,6 +19,7 @@ class BlockContentAccessControlHandler extends EntityAccessControlHandler {
    */
   protected function checkAccess(EntityInterface $entity, $operation, AccountInterface $account) {
     if ($operation === 'view') {
+      return AccessResult::allowedIfHasPermission($account, 'administer blocks');
       return AccessResult::allowed();
     }
     return parent::checkAccess($entity, $operation, $account);
diff --git a/core/modules/rest/tests/src/Functional/EntityResource/BlockContent/BlockContentResourceTestBase.php b/core/modules/rest/tests/src/Functional/EntityResource/BlockContent/BlockContentResourceTestBase.php
index 4d30111..417dd0f 100644
--- a/core/modules/rest/tests/src/Functional/EntityResource/BlockContent/BlockContentResourceTestBase.php
+++ b/core/modules/rest/tests/src/Functional/EntityResource/BlockContent/BlockContentResourceTestBase.php
@@ -25,8 +25,6 @@
    * {@inheritdoc}
    */
   protected static $patchProtectedFieldNames = [
-    'id',
-    'revision_id',
     'changed',
   ];
 
@@ -46,13 +44,15 @@ protected function setUpAuthorization($method) {
    * {@inheritdoc}
    */
   protected function createEntity() {
-    $block_content_type = BlockContentType::create([
-      'id' => 'basic',
-      'label' => 'basic',
-      'revision' => FALSE,
-    ]);
-    $block_content_type->save();
-    block_content_add_body_field($block_content_type->id());
+    if (!BlockContentType::load('basic')) {
+      $block_content_type = BlockContentType::create([
+        'id' => 'basic',
+        'label' => 'basic',
+        'revision' => TRUE,
+      ]);
+      $block_content_type->save();
+      block_content_add_body_field($block_content_type->id());
+    }
 
     // Create a "Llama" custom block.
     $block_content = BlockContent::create([
@@ -63,11 +63,7 @@ protected function createEntity() {
         'format' => 'plain_text',
       ],
     ]);
-
-    $block_content->setChangedTime(123456789)
-      ->setRevisionCreationTime(123456789)
-      ->save();
-
+    $block_content->save();
     return $block_content;
   }
 
@@ -144,7 +140,18 @@ protected function getExpectedNormalizedEntity() {
    * {@inheritdoc}
    */
   protected function getNormalizedPostEntity() {
-    return [];
+    return [
+      'type' => [
+        [
+          'target_id' => 'basic',
+        ],
+      ],
+      'info' => [
+        [
+          'value' => 'Llama & ' . $this->randomMachineName(),
+        ],
+      ],
+    ];
   }
 
 }