Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '511d4adf8db7e5ebbe4589249fed8849de16bacc4531af175e1691065146113e' 
  AND token = 'mEPfAasUZqs/WxdrD44mCdsvysdPZnGjgwVqShT0920=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00018

JSON explain

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