UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'gy7gKsq6llzv8pK6weWDWzz+2DIbgxSBAFmMQps8s3k=' 
WHERE 
  key_id = '6a4dcf33ea71f5eded0db495300af34284852600b40387d502e06697464d91c3' 
  AND (
    token = 'gy7gKsq6llzv8pK6weWDWzz+2DIbgxSBAFmMQps8s3k=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )