Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'dd5135b54cd82fe0a106f1388a15128363b2bf304a9345379606435e920687ec' 
  AND token = 'QKK8H/E4MF+EewlDCq8JfPa5yo/3ZlsB7Qd3lplv2rg=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00040

JSON explain

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