UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'Yp1ktf5i7r4G6mL6UL2979eBWsCm0ARRDax0GhOALu0=' 
WHERE 
  key_id = '83a93a63a596d302e75965fbc4255a3ee78f72844109bd73efb0a47d44b20ec6' 
  AND (
    token = 'Yp1ktf5i7r4G6mL6UL2979eBWsCm0ARRDax0GhOALu0=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )