UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'B6ZRHP/F1gr+O4NmAmG3a16zFJCcNT35SsKOSTcrzp0=' 
WHERE 
  key_id = '939ce52bc9485c9278a62af510128a2adc2624de6d5ee17724d10dd9b80cb984' 
  AND (
    token = 'B6ZRHP/F1gr+O4NmAmG3a16zFJCcNT35SsKOSTcrzp0=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )