UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 300, 
  token = 'nU625WFFGfeCH8Cl3fUjOIc7IshZhCOnq9IXjN9po6c=' 
WHERE 
  key_id = '411dddc2055ce3dcc0924d38b461cfde3b0feadc1d30343321cc36444d8840e0' 
  AND (
    token = 'nU625WFFGfeCH8Cl3fUjOIc7IshZhCOnq9IXjN9po6c=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )