Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '0d1ce69003b66b8dab80fd3520502fae3ab5a8aa3184a99b49f118c05f76fbab' 
  AND token = '966A6As29N7JURhCHp0z0jZmnhZKrixxEO+27R7gJ2k=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00017

JSON explain

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