Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'addce10c0fb9ef1e194f8fffc02f61a4e53577fa7622fc5be0f1ae8253618d61' 
  AND token = 'LZth6/thSUc0ysX3xg0DA715vC/OXYunr5CJNUpQF+k=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00020

JSON explain

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