Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '4d94cbd3bd36d8b8382215dededcb4fa0315524189c07067b21be6746cd92683' 
  AND token = 'NDFzO9fldTdXIaL9X28ecDBxdnxfR59CdYw0+Z19jcs=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00035

JSON explain

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