UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '6eB5NVPfyoeF60ct1dqBj2UPQGfXxdtpvzWLYsCBxhU=' 
WHERE 
  key_id = 'a75db23860c180da5768fb2a76a8928c68f9005666584ca933e3e322e0b0f072' 
  AND (
    token = '6eB5NVPfyoeF60ct1dqBj2UPQGfXxdtpvzWLYsCBxhU=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )