Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '2183001c8dfcfea3b3ebe3eab0b367206202d7e6a81ac86f494b805ef2623225' 
  AND token = 'PC/pSBTAwBj4zLKkmDVzxa/5ObLEllSIy9RVRsGVxc8=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00023

JSON explain

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