UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'JR4RP/ijKP0znZbh/nrcvxMe27oHwiruTaZM36Y+mmU=' 
WHERE 
  key_id = '50e064faedc598be4523a302abfa3691e264d8f6afbf23ab7f8a278b3457d8e0' 
  AND (
    token = 'JR4RP/ijKP0znZbh/nrcvxMe27oHwiruTaZM36Y+mmU=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )