UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '51jP2u8j9EtvkI4yUvHSh5FGjpyD4bPX40lBaFVZQbc=' 
WHERE 
  key_id = '4de1a004628e4ff6f94099591a3cd877d7e84925b9fee71faff71051f0d77423' 
  AND (
    token = '51jP2u8j9EtvkI4yUvHSh5FGjpyD4bPX40lBaFVZQbc=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )