UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'zCdpZ4rJNM0gypJ/a8Q+IwuozjCPeU8Vs8pFxPIWGVY=' 
WHERE 
  key_id = '51b5da68732c05683975c6938c23272be40797f809498d2f65e654adf8e7154f' 
  AND (
    token = 'zCdpZ4rJNM0gypJ/a8Q+IwuozjCPeU8Vs8pFxPIWGVY=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )