Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '171b5b20548c1137ee3e1504d52272c415a4e5ddeb63ea5bc5fed83bb1fad63b' 
  AND token = 'FRREDqa6LlU8YiXz/eYzR/oNpq81eF/Z/aK1QemVSUM=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00026

JSON explain

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