Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = 'abb352fc5dfe8d3b6586dad71edd581adcfc2d081220ec40e5384ab90c6dc4b2' 
  AND token = 'L9Ad2cXVPQZRFbZkvukFqld7x1hVdIrHZI9807nbNsc=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00048

JSON explain

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