Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'fa92a9d9e6034948c331da5847841167184f17d820107982ce69ee4159bf103e' 
  AND token = 'JclhKzUPDTag2vVODJtzCiM8TS3RqjhWEiKCTebcihw=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00014

JSON explain

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