Spring Boot + JPA + Hibernate does not commit when repository.save

I have a Spring Boot Application + JPA with MySQL. In my controller, when I post an entity I am able to call to repository.save, and I return the "created/updated" object.

But, when I look at the database, I see that the object is not updated.

Here is my application.yml:

spring:
  jpa:
    show-sql: true
    generate-ddl: false
    hibernate:
      ddl-auto: none
    properties:
      hibernate.dialect: org.hibernate.dialect.MySQLDialect
      org.hibernate.envers.store_data_at_delete: true
      org.hibernate.envers.global_with_modified_flag: true
      org.hibernate.envers.track_entities_changed_in_revision: true
  datasource:
    initialize: false
    url: jdbc:mysql://${DB_HOST:localhost}:${DB_PORT:3306}/${DB_NAME:databaseName}?createDatabaseIfNotExist=true
    username: ${DB_USERNAME:root}
    password: ${DB_PASSWORD:root}
    driver-class-name: com.mysql.jdbc.Driver
    hikari:
      minimumIdle: 20
      maximumPoolSize: 30
      idleTimeout: 5000
      data-source-properties:
        cachePrepStmts: true
        prepStmtCacheSize: 250
        prepStmtCacheSqlLimit: 2048

Do you know what else do I have to do?

This is my controller:

@RequestMapping(method = RequestMethod.POST, produces = "application/json")
public MyEntity saveMyEntity(@Valid @RequestBody final MyEntity myEntity) {
    Assert.notNull(myEntity, "The entry cannot be null");
    return myEntityService.save(myEntity);
}

And MyEntityService:

@Override
@UserCanCud
public Entity save(final Entity entity) {
    Assert.notNull(entity);
    final Entity savedEntity = repository.save(entity);
    return savedEntity;
}