Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '9695132105a2586ffab873661d6c25c73fd5dca2a04e63e0273c76894a18ceda' 
  AND token = 'ROID3L7Aj4f3tfyLarkUxR0FOgdX/o0fQHwuYEJRP/o=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00038

JSON explain

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