Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '1c453465d94b6fa80bbdd55fb3613d1f674c65554ae875e9af718f0538f39bd6' 
  AND token = 'Xkjh5WjuJu9nNMS8K5T3swgD8ibd3ORDVr5KwQuSJuU=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00016

JSON explain

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