UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '//7HdkToJNIdlbPRze3VwfnhtoaGZQoTWL3CHEak1so=' 
WHERE 
  key_id = '4a76bb1c7c090a1c5dc0aff40df58a958f4959ce1d14c5f3702cd70d620fa8ee' 
  AND (
    token = '//7HdkToJNIdlbPRze3VwfnhtoaGZQoTWL3CHEak1so=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )