UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'GkB/OMg73Mvudu2FQ6P33NVzzOB0zmfApOftY1Q3vY0=' 
WHERE 
  key_id = '21349ba4e946101060b088061a8cebebfac77dbab9b803b37cd210028e96a9fd' 
  AND (
    token = 'GkB/OMg73Mvudu2FQ6P33NVzzOB0zmfApOftY1Q3vY0=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )