UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'SixEHaw9qA+1MktY6N3Te1Oj+5U0EMHY71ZEm6h4KYA=' 
WHERE 
  key_id = '6b915e8a71d0b849e12f5009e2aed45189d6721ce6f96c3a72d0d80f49c45cd2' 
  AND (
    token = 'SixEHaw9qA+1MktY6N3Te1Oj+5U0EMHY71ZEm6h4KYA=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )