Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '228b3b17c5e93b22319c16d7c72aa3eda939c90d86063ea7d15cc29e9b16ea82' 
  AND token = 'ipLXDuLVaH/8ep4BYl4OhuVbRb7y1UzvXVGvvJBflOI=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00031

JSON explain

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