Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'f64f2e8248fc1698b88aa229b0c0ae92d6fe2d0cebed2531ba7aacacae9a716d' 
  AND token = 'y4drHkQGrpKpFsV6JRft2CAUJhte0XTOfFKcPowwKis=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00034

JSON explain

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