There are different example of priesthood authority. An example of priesthood authority that was restored through the prophet Joseph Smith was the ordinance of baptism.
Joseph Smith was known to have been spoken to by God the Father and Jesus Christ in a vision and was said to have instructed him to restore the Church.
He stated that by being baptized, we as humans are following the commandment of the Savior and so therefore is the first saving ordinance of the gospel.
Learn more about Joseph Smith from
https://brainly.com/question/463692