UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'SXiyJcmxCEx5vzTaj2ZjzZ7x8Kv5HUO+rH9uhSia4Kk=' 
WHERE 
  key_id = '71beca926120e71cee8ec5b824103fcd10bd5cf4bd26c5d4616fd89081bb62a6' 
  AND (
    token = 'SXiyJcmxCEx5vzTaj2ZjzZ7x8Kv5HUO+rH9uhSia4Kk=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )

Query time 0.00040