UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'MTnNE1GDWYVRY2QFNaDejmTEaYETUdAIwDFjdD362pA=' 
WHERE 
  key_id = '3cad83a82dbffa1172dfc778568e982d3f242acf64249c0d645880c480c2352e' 
  AND (
    token = 'MTnNE1GDWYVRY2QFNaDejmTEaYETUdAIwDFjdD362pA=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )