UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '73XiiJV3awcclgnssTQ8IiVlLGz9vk0Nsv3vTfUT7a8=' 
WHERE 
  key_id = '2a59afeb3fb8e2b9eb9a94f08e7c633506550c496b3ed5709a5d9b326798a414' 
  AND (
    token = '73XiiJV3awcclgnssTQ8IiVlLGz9vk0Nsv3vTfUT7a8=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )

Query time 0.00031