UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'xX3SX1trwL6h5VHM3F2BhZZM7HcmP88uBfNfqUXpDI0=' 
WHERE 
  key_id = '751ff1ff56b91b4390405afa3a74dba4754016d69620259559e4c6e618fac458' 
  AND (
    token = 'xX3SX1trwL6h5VHM3F2BhZZM7HcmP88uBfNfqUXpDI0=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )