UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'iBu5hrJf8uRY0I9ihup1GB76FpE9PSHGWhcOw0PdEiU=' 
WHERE 
  key_id = '68d2f92edb279b2fe75f6122fabdecadaf26d490a52f25c3ff4cda52c694a975' 
  AND (
    token = 'iBu5hrJf8uRY0I9ihup1GB76FpE9PSHGWhcOw0PdEiU=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )