Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '44b4a90166ad267e8a03c1b2e126ebcccb901918388d501d22d1f4face96b445' 
  AND token = 'n2jbm2gyqiQkOgXfTYmhBf+SQQIokVPYXOEjBi6ORN0=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00033

JSON explain

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