UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'GTleO1AYaABLIR1klphy26YZuEMUnNZRRAgRVFIJcMg=' 
WHERE 
  key_id = '252cc1bd1f713f9637b28870e22edf2b607069359f02834ce453ba398c92066d' 
  AND (
    token = 'GTleO1AYaABLIR1klphy26YZuEMUnNZRRAgRVFIJcMg=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )