Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '0becf391bb89d208132b28df5768af32f051f22b2e4eee6078335bc91e2bd3ed' 
  AND token = 'fA4O15Ht75LcQVvY0oJXTI4g9pM9Y0iIKjuxEE2hbKc=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00032

JSON explain

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