UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'tfW/58P2PTBUXhnMbCnPl55z0AY41GrJnhZb5gOUP5o=' 
WHERE 
  key_id = 'a51fd78dcfdca97de18571aeda4184d62d522d18b947b02e3b036c93dbdb0737' 
  AND (
    token = 'tfW/58P2PTBUXhnMbCnPl55z0AY41GrJnhZb5gOUP5o=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )