UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'eKCVKEclt9/A36L3QWgEqbi/GWknKZHvKu1zFvjD7po=' 
WHERE 
  key_id = '451fee4d67d84efef1388d1e9f604284ccecfbe04f5650218b1e433ba735268a' 
  AND (
    token = 'eKCVKEclt9/A36L3QWgEqbi/GWknKZHvKu1zFvjD7po=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )