UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'DFvtbNLQtyEhEN3q6awFh+0NCU/eeAkidEOXjjCeFEY=' 
WHERE 
  key_id = '4921d851ca7da38a5320653071592d680885be8022b3a43d959f55862bc44a1c' 
  AND (
    token = 'DFvtbNLQtyEhEN3q6awFh+0NCU/eeAkidEOXjjCeFEY=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )