UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '4iUFjJRXuxIrKsiv01PF+8VSrvqZdHnXrndFuIavPsI=' 
WHERE 
  key_id = '15b5500ca09d96ba5ecbbd9d5deb35aba4f0bce8165640e2b68950e3a7cae820' 
  AND (
    token = '4iUFjJRXuxIrKsiv01PF+8VSrvqZdHnXrndFuIavPsI=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )