UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'uKHmLSdz++bPVqFzno9QLXIrmFlxL/LzHzYhJ3x042I=' 
WHERE 
  key_id = '18a8eb8b888e9760dde89710ffbdead136b10b168728691637f8eef002650541' 
  AND (
    token = 'uKHmLSdz++bPVqFzno9QLXIrmFlxL/LzHzYhJ3x042I=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )