Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '9bf6dc63dc4aa3ed34df035ace1b476f2143583515efd701403f345f7e459659' 
  AND token = 'f0KaCy8NUZj/UnW7YXVtM7RbQo4V/FJU0jQfGjE5DkA=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00030

JSON explain

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