UPDATE 
  vi_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'WUSWu75fIP04FJu8iM83rbIcyvC8fSjLPmY2IEmQipQ=' 
WHERE 
  key_id = '4d168331fe1398767d5fa46e78d3e7866ebf08fd50567080beb0cf5132afa28c' 
  AND (
    token = 'WUSWu75fIP04FJu8iM83rbIcyvC8fSjLPmY2IEmQipQ=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )