UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'a2xDxjxYqGdsZ3mxnfxskWmyw3tfsI8c2dm+epD0e/A=' 
WHERE 
  key_id = '791d74609c06e03505b4e8e280d33f2c686815b57c30799d2fed5769aab850a6' 
  AND (
    token = 'a2xDxjxYqGdsZ3mxnfxskWmyw3tfsI8c2dm+epD0e/A=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )