UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'jaUkxy2MNE2k1VH5WD1hOeTcPXQdbmhF/zoPowchepY=' 
WHERE 
  key_id = '50fe94a531b6d25d064873d64815762c853210b89242031014683be51cded803' 
  AND (
    token = 'jaUkxy2MNE2k1VH5WD1hOeTcPXQdbmhF/zoPowchepY=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )