UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'ReZBVAc6NMDtEo55p+IUgUGZCM+wlk/RtVyVgaMIEG0=' 
WHERE 
  key_id = '5ac4b6b5d9e5c4bb4c7e38e50721c9843398e411a1cade230d97618dc193e04a' 
  AND (
    token = 'ReZBVAc6NMDtEo55p+IUgUGZCM+wlk/RtVyVgaMIEG0=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )