UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'vcU7cWjZOEfaHMua7rPMcx2+CEFP5sPKBUw/mkjaTQs=' 
WHERE 
  key_id = '50835ff56cfc41667649b748ae16a1b1a8cb73c78c0da1dd5290e8c594d2b851' 
  AND (
    token = 'vcU7cWjZOEfaHMua7rPMcx2+CEFP5sPKBUw/mkjaTQs=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )