UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 300, 
  token = 'EjprhEDGGPmqlMt8unvmcrz7hGcgpJxGzOJsRtx9uME=' 
WHERE 
  key_id = '2e37a8a81453c61deb5858c5615232070a9500131e0af37c08cbb285241a2873' 
  AND (
    token = 'EjprhEDGGPmqlMt8unvmcrz7hGcgpJxGzOJsRtx9uME=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )