UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'MMBelUfmC5uIRRNi3Ufsd4ut5zB3k+JaSUCszhpLy+o=' 
WHERE 
  key_id = '83819af59a2de80cbf0f70dd2a8b56dcfe958ac982a67d0a71a3d85673487950' 
  AND (
    token = 'MMBelUfmC5uIRRNi3Ufsd4ut5zB3k+JaSUCszhpLy+o=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )