UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'KRCVjmzP9cTWcEzdq2Y1BaNKfv7Ihw7y+iqEIbrro0s=' 
WHERE 
  key_id = '51936e3078f31fc3dadbca1454b3d85f54557b7f786d43623f6f085ef9ef6e25' 
  AND (
    token = 'KRCVjmzP9cTWcEzdq2Y1BaNKfv7Ihw7y+iqEIbrro0s=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )