Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '69fd0d6138d2f384520092196ffaab98ee0a2fb163963b6e2c0fc01833750d7a' 
  AND token = 'AQXwy90aKCD639ZSAYb9D9C3girp04vwxcbJ9JNsscA=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00038

JSON explain

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