Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = 'eb6cff9ed3240acf8b5e90db882b64e059bb42f73303da394a18b5de4024dce9' 
  AND token = 'TNhuXR9sPiu6Acxz/sj60UyvEoEMogseNgyc7q1ZizM=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00028

JSON explain

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