Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '89dd10eaa94db96ec4916abab804a5aed4550416c1cb570235ecb6dc9e7f39e8' 
  AND token = 'AlqoZ1IOE43qiXgok8wdVIO8GIxag0stD4I+co4Ajwk=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00033

JSON explain

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