UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'Zk9ctXO5pfrB4vB8UOe1klmn6NsjC6br7fk3nMCHSUg=' 
WHERE 
  key_id = '5c8c4f0cc91b2038b3206512d6669263d3bf187723156eb851efe5ff507c0c41' 
  AND (
    token = 'Zk9ctXO5pfrB4vB8UOe1klmn6NsjC6br7fk3nMCHSUg=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )