Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '79240c846e03588daf385807616ed694aeceacf2dbea16f2c7f1ce0be0ea9356' 
  AND token = 'dafPqOnm3ptLnY0ps5D4d/Kj0+fiGOdM7lFkLc/VbeI=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00032

JSON explain

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