Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '2a944d8bd39876151d6f98fe40b897237539ab105ffa643b7fce56353803eb05' 
  AND token = 'H5T8N39oC23uh7b2HAuTh74Ts5Ut+6x13otzksXtdwE=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00034

JSON explain

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