Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '02363c885372db4199869f2cc8b3fd44203e9b835f4ed9832d6819bde053c07c' 
  AND token = 'p06JxXZOuVKQIT1it64m8v1dKREDWEol+ALhtlBbkm8=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00029

JSON explain

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