only in patch2:
unchanged:
--- a/core/modules/rest/tests/src/Functional/EntityResource/Comment/CommentResourceTestBase.php
+++ b/core/modules/rest/tests/src/Functional/EntityResource/Comment/CommentResourceTestBase.php
@@ -154,7 +154,7 @@ protected function getExpectedNormalizedEntity() {
       ],
       'changed' => [
         [
-          'value' => '123456789',
+          'value' => (string) $this->entity->getChangedTime(),
         ],
       ],
       'default_langcode' => [
only in patch2:
unchanged:
--- a/core/modules/rest/tests/src/Functional/EntityResource/Node/NodeResourceTestBase.php
+++ b/core/modules/rest/tests/src/Functional/EntityResource/Node/NodeResourceTestBase.php
@@ -126,7 +126,7 @@ protected function getExpectedNormalizedEntity() {
       ],
       'changed' => [
         [
-          'value' => '123456789',
+          'value' =>  (string) $this->entity->getChangedTime(),
         ],
       ],
       'promote' => [
only in patch2:
unchanged:
--- a/core/modules/rest/tests/src/Functional/EntityResource/Term/TermResourceTestBase.php
+++ b/core/modules/rest/tests/src/Functional/EntityResource/Term/TermResourceTestBase.php
@@ -108,7 +108,7 @@ protected function getExpectedNormalizedEntity() {
       ],
       'changed' => [
         [
-          'value' => '123456789',
+          'value' =>  (string) $this->entity->getChangedTime(),
         ],
       ],
       'default_langcode' => [
only in patch2:
unchanged:
--- a/core/modules/rest/tests/src/Functional/EntityResource/User/UserResourceTestBase.php
+++ b/core/modules/rest/tests/src/Functional/EntityResource/User/UserResourceTestBase.php
@@ -104,7 +104,7 @@ protected function getExpectedNormalizedEntity() {
       ],
       'changed' => [
         [
-          'value' => '123456789',
+          'value' =>  (string) $this->entity->getChangedTime(),
         ],
       ],
       'default_langcode' => [