UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'L6t2/8JUniyoSSwYB5tyP9xIIyCjWVWZwiBodqy2JX0=' 
WHERE 
  key_id = '50ec132e4905adaf762e1f16f9f33b45e29ff495beccce80d2951cd5ad3188ab' 
  AND (
    token = 'L6t2/8JUniyoSSwYB5tyP9xIIyCjWVWZwiBodqy2JX0=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )