UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'VLzsMWcrWdmt4CUqXoD61ZvZrrNqoNcf2+RHKVekPHg=' 
WHERE 
  key_id = '255d7413bb051400ead91810d95589d20a25841467c970f6854308cb49c2c39a' 
  AND (
    token = 'VLzsMWcrWdmt4CUqXoD61ZvZrrNqoNcf2+RHKVekPHg=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )