Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '083e2450cf9ad3121a266410e582dc17d8afa919cfea9ef2b61265c8e90f2226' 
  AND token = 'ij5ODA+ZGKF5OHtNDfie0ua6Es0QirLqHtEiH1R8jeY=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00024

JSON explain

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