Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '8d5dc376e48a11a707a75aca53a83248b04f65e9ab247dc7f355121659fd99dd' 
  AND token = 'l2ESk8Z3X5vWG04JFA0lZbTq4g1aowM3hUsumkBxnGU=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00027

JSON explain

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