UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '91Gz7bnx4QC3pFh8N6CnyuI2MwlxebLGrV75SEqt960=' 
WHERE 
  key_id = '39d5893932a2a1021aefa95b953f2b7811755e24e65b9824cb55aa1b091d0262' 
  AND (
    token = '91Gz7bnx4QC3pFh8N6CnyuI2MwlxebLGrV75SEqt960=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )