Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '0441026e161cca2f84add8ca1b96f8e0603a68500305f1cecf8ef5c1461cd35e' 
  AND token = '9Iw29t+uk7hSHbq+SIjcaS78BBC/TBz8QBtIRr6dgQ8=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00014

JSON explain

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