UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'R6ChFwsjAijvDgpAsGc1Czeq4/nzPUZrwWe55sOCteY=' 
WHERE 
  key_id = 'ea181c4441d86b385e2da05ce078388c6d21f9c02036594178ae999c060a5d44' 
  AND (
    token = 'R6ChFwsjAijvDgpAsGc1Czeq4/nzPUZrwWe55sOCteY=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )