Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'd19ee9eef0ec56f39fde8780e49c9fa605879194c99d7d644f8f949c31518320' 
  AND token = '/rA8dQv6WofvI1/9RuVyWOkiTHdFS3BqlFgh8cU1MSI=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00027

JSON explain

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