Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '94119d6cf00fb05dac2ed37355978fa5369efce732f37056e682bba6bf473885' 
  AND token = 'NjMQbgY+K0CuO3N2Su8WxuoFiDEsWtgqhO+64EDbzW4=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00016

JSON explain

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