Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = 'ca844199b9c75e0ce9ea2a602232647209095d90d1458cdc3e1974139a9ac52b' 
  AND token = 'AXSZK9NhWxGGuVnpiwtHhQ5PF4kcP98nEeRNfUIpUdg=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00031

JSON explain

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