UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'B2u2gbVkzmYv5uvxbRJzzQoGl/gjk5HX32ZLpd8oK3A=' 
WHERE 
  key_id = '39f18f4ec350f494fe5957803e150818169283cbc631648d575e27d365d01987' 
  AND (
    token = 'B2u2gbVkzmYv5uvxbRJzzQoGl/gjk5HX32ZLpd8oK3A=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )