Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '2d15ec5cc572210bf6d95e41220714d044927ac6fd592bb6a103bcab1fc50fae' 
  AND token = 'tXrsuxWLiozecJNw7W+j6Ez7zTU5vdPAdEHiTjPyDNo=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00038

JSON explain

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