Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '80aaa2044dc19d267963d37da48f165ca64764ae687a196b966ab554cbccacc4' 
  AND token = 'KzUNmMMJINOzOKippUGQz+7ei6sbAP5N4KlxjpWuxrw=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00031

JSON explain

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