Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '0dce5ac324f13d10dc55dc97074936dfaada4819243f7d8b460635ad42ac98e8' 
  AND token = 'Ey2ppS+DeOJKErQ+UlHBirew3whY82Bmcp8qauvZ/iw=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00020

JSON explain

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