SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '7bed329484d5df4c5e0ef23907b93f270a9f75232f770398c72e9ef6803517e7' 
  AND token = 'yezI8Z4fRBWD3hxLa6/+VJCqeYyFg0jnd1CvoKqAqag=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00030

JSON explain

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