UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'zrq2RK6qwAWbPB/VXnNFXCtFkbKbAB2OjtzBdGUcyjo=' 
WHERE 
  key_id = '168a0ba3255f6e393908f18608f0434e5ffae505d343b63e09c9f3da852d5b50' 
  AND (
    token = 'zrq2RK6qwAWbPB/VXnNFXCtFkbKbAB2OjtzBdGUcyjo=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )