Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '85822348212f73d303d55b1881eb0ac3be213ea86487f134fa8fc4a4a173f46e' 
  AND token = 'Kal6H3utO/Xk5n6C9xy8ONuKheydkn8d+53EHfbsBfU=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00032

JSON explain

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