Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = 'b64b4d760e40ce3cd719cd936ffb6eed0068f74289936058c0119d29e08619f1' 
  AND token = 'X5jwrUCBENqBCjc0r3Li32GwkuOjMhxph8hUXcm0SAU=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00026

JSON explain

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