UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'Z5QVTW1hzS3KoVXeLPmvJS1Exzrd63875PhApOqjNvI=' 
WHERE 
  key_id = '68d6517c60c4d5177698fb98f5b8eb0f350a5e553bbace0fd9aeea28fb03aaf1' 
  AND (
    token = 'Z5QVTW1hzS3KoVXeLPmvJS1Exzrd63875PhApOqjNvI=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )