UPDATE 
  q_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'UA3HHnplWIXRRYcCXgluQ8eCGkBzheMRAAc7k3NXB9c=' 
WHERE 
  key_id = '3251b41441587af50ef51d3b836cbbbe36e36fdbb25d49692afd4da14c41eb25' 
  AND (
    token = 'UA3HHnplWIXRRYcCXgluQ8eCGkBzheMRAAc7k3NXB9c=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )