Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '49155398cbb66da9f8e8e44d439b6444febd577c535aaf066776441053b5ad14' 
  AND token = '0d6ikuic+284Q5sgTA5/X+EHoUc18Nv2y8qQe3UdIyw=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00023

JSON explain

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