Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '1becf82121204bdb52dac9e042a8d527a19eb8932f6d502def3c5a89c001175a' 
  AND token = 'lt9OY0jON3HnpAbH9glqf3FFjefcqjWBC8WxQkU7IL8=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00017

JSON explain

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