Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '42870b322766ff603caa4be587a8b9c7cfb12fc550ca6f3cfe96ce3a5f95a834' 
  AND token = 'RiKqO8sXxeAITpNJ2IElmKj0Q0SaVIiu6V8nI+NDTMs=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00018

JSON explain

{
  "query_block": {
    "select_id": 1,
    "message": "no matching row in const table"
  }
}