UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 300, 
  token = 'lxpUQoEby4Mj6u765lhzZ2SQCavl2a/mHYyOSJxW5KY=' 
WHERE 
  key_id = 'f926fee64dd5ad9a09e51d7565e062e6954689f6abbfaa1d28c52c788b4276d8' 
  AND (
    token = 'lxpUQoEby4Mj6u765lhzZ2SQCavl2a/mHYyOSJxW5KY=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )