UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'VCNWSstOHKYRqydQzbrVnzz/omOnma0p02VCKeNCtj4=' 
WHERE 
  key_id = '6d7308615d92a97c39d884e59e7db10d0a0c16bc1cb5688ff29b3fc0b103863b' 
  AND (
    token = 'VCNWSstOHKYRqydQzbrVnzz/omOnma0p02VCKeNCtj4=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )