UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'AgFDaPjeKXOnkDjvrws1G7taTi2cNeWfNQAFtgENWmo=' 
WHERE 
  key_id = '51ec1f8def8ba602beb25ef9b0d7c6bfc7350fe39dd2d0523af2fc6b98e38a7b' 
  AND (
    token = 'AgFDaPjeKXOnkDjvrws1G7taTi2cNeWfNQAFtgENWmo=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )