Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '7b224136462dc5fe768afca76c613489e479e8d1dee87febe3d5adde460672ad' 
  AND token = '3JEgAYL5tA8ugK5OgM94Dlk9fWfTfTcENkDpYLoMy2Q=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00028

JSON explain

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