Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '7a10a3c02f352af9a7f4922f49232189197dd19a1d0ad420087a47137b7b8efc' 
  AND token = 'BllyK6AUJ3yk7orS69ZwNQjVCPsgUK1g1QaQ4UzEEF8=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00049

JSON explain

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