UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'gt75VgmCgCOf96akDgEpH4llTADUckVf4t0y86aPcts=' 
WHERE 
  key_id = '851a12624faf727735d01b82110a48131617d96021a76d893bb8252020808a34' 
  AND (
    token = 'gt75VgmCgCOf96akDgEpH4llTADUckVf4t0y86aPcts=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )