UPDATE 
  vi_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'TmuzZjOwlw3SOCzxtjv6YGAjEFLC8KijgNimYjL6eVI=' 
WHERE 
  key_id = '4c207af212e72c16186b46be8052f8c2a506bd12ee55a9106888e9d36b711ac4' 
  AND (
    token = 'TmuzZjOwlw3SOCzxtjv6YGAjEFLC8KijgNimYjL6eVI=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )