UPDATE 
  q_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'fmjFdPUa8cLGl6+3uQpdPHARJqw3sm1w8935t4Jv4IQ=' 
WHERE 
  key_id = '4e6f71b9912c38a3b880431d89321859cb20e628048564861dee508c99ef66c5' 
  AND (
    token = 'fmjFdPUa8cLGl6+3uQpdPHARJqw3sm1w8935t4Jv4IQ=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )