UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 300, 
  token = 'OjPRlZTuRysunykNJbnB6FLqTaFypeDE444OrOA3OaU=' 
WHERE 
  key_id = '32751848ef636f0b1bcb848eb365ac40e84df476051273f43e70aa4b1bb0e78d' 
  AND (
    token = 'OjPRlZTuRysunykNJbnB6FLqTaFypeDE444OrOA3OaU=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )