UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 300, 
  token = 'yNAKfCALuYsHo4toeldZulVFDTuKyEH89wVCktqYBrQ=' 
WHERE 
  key_id = '937a12591ac9f8f1528c4db53ab598fbfa5f6526f46d3939881f3a968cd5c499' 
  AND (
    token = 'yNAKfCALuYsHo4toeldZulVFDTuKyEH89wVCktqYBrQ=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )