Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'daf665483b4d94aa5f054b18f421869a42590b694ea867919bb4033ab7cc237c' 
  AND token = 'FSwPnCcSZ+kpkg3tbZ1ic30nbgd5hGBOTjk9jah+BXQ=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00016

JSON explain

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