Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '61131373241dd99fc10b4ea8909fb6c3e2573f342f1fe1875e7a5d326a35e9aa' 
  AND token = 'uJHziqNm/S3A/VyGdDMbPrpPtnCLip2D0tFJF9Wibqo=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00035

JSON explain

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