Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '533499fd581dde55054844fc4ac99099bb0460eb5f05000580cce4f06d1a552d' 
  AND token = 'K6qd2/mghLmx9xGx9QVAweqh5XgYfKsaJD3DZhhmKKM=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00031

JSON explain

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