UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'tNz34N4q+XDkhN0wdeNaQc1DUhDkwiXZos6PBM8Vhmc=' 
WHERE 
  key_id = '6dcdf28d6c68a2e629db915b4ef34626b635633b1aa82e0a0b2b8efca85ad76c' 
  AND (
    token = 'tNz34N4q+XDkhN0wdeNaQc1DUhDkwiXZos6PBM8Vhmc=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )