Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '8e39222468e60410be54152c795cabd6b1b93b5500f020bf7a3d2666ea51cc0f' 
  AND token = 'QxovhnknJJS7QD2iArRXqkfW6OaWcisuCOE2EGX1oB8=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00034

JSON explain

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