UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'Obr4ifGevwyA5TRdhJ84B7M+pZ8GsjcZjVnAVh8Lef8=' 
WHERE 
  key_id = '49d70a0b170894a93834026f827a3f2fcd5206ce3427833e49de3427e601db05' 
  AND (
    token = 'Obr4ifGevwyA5TRdhJ84B7M+pZ8GsjcZjVnAVh8Lef8=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )

Query time 0.00020