Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '60c190933a38b277c542f02faf811e870ff160a0d12fe4cb97b205e35ce1a3c2' 
  AND token = '6BdKcdA0yHI92wJGY+LG+lgC9v6gTforxjO4ynkr1PE=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00048

JSON explain

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