UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'pxLPSqa0OnVV9mg3kccPyrv24xjf+D6bNWxij/PKKQE=' 
WHERE 
  key_id = '311e691a41a6f4684426b045f4dfdfb553a2626fb5c806b92026abcbaca8d80a' 
  AND (
    token = 'pxLPSqa0OnVV9mg3kccPyrv24xjf+D6bNWxij/PKKQE=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )