UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'PIWGAGtqIp31Ga4T6O6RlWzQJ943i2CuR51SnSIZrY0=' 
WHERE 
  key_id = '50c6f45e0b0d9e47e4879e267bb1789f412f4d4d45151d9fd3e50f06df22478e' 
  AND (
    token = 'PIWGAGtqIp31Ga4T6O6RlWzQJ943i2CuR51SnSIZrY0=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )