Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '2fa81c44d9e4ca1edc4787d386c5cb08d5ea5c329c1e2f8903a8e27ba4f85b6c' 
  AND token = '04JZ3umjKYlUoNhnMYfGznBNefBJidSH0l1PahyCKu8=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00020

JSON explain

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