UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'mZgkidyILwyz8i9ptOKnEJIAC1bSO2IxEQVbH+FlMN4=' 
WHERE 
  key_id = '50dc28b68cdb9b60065aeb4bf49eef8eb26ebe8fd5d7a39d19019c3c236bb643' 
  AND (
    token = 'mZgkidyILwyz8i9ptOKnEJIAC1bSO2IxEQVbH+FlMN4=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )