UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '6e2PqNYAztB8ZmuUcYYvLlhqeEqgm7qGDHK2LBQGVPY=' 
WHERE 
  key_id = 'b4a2f943ad104056fec813fff8dee2d5f57f36a90eb131ef2103e8903d20f5f5' 
  AND (
    token = '6e2PqNYAztB8ZmuUcYYvLlhqeEqgm7qGDHK2LBQGVPY=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )