Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '41c90d5e037f912a8c0de1c480d64f11b397675bd8150a3359fc182a264b891e' 
  AND token = 'nIgtAV5tu2igiX/WgmbSvnAvVw/8+i9Qvu0CORb9m2k=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00034

JSON explain

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