Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '06bf9eeae69e5dc3ea7025755c488bb1b16fe671eb80e9436b01b87380a87204' 
  AND token = 'aLMKlRihbbT3GBXDjYlCfCGR7tMn10f1Yd+/H071lc4=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00034

JSON explain

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