UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'gPFokBtpRKv4mvqoxkl6NtsHlDnc3DgL+zORK6HOjC0=' 
WHERE 
  key_id = '20bf41f2083b559b0f6c0df6512589ffce6a880f4f8c22536f76617572c31733' 
  AND (
    token = 'gPFokBtpRKv4mvqoxkl6NtsHlDnc3DgL+zORK6HOjC0=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )