Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '9ca0d28c11b9d747dac2a4833e68e31de43cdaf2822d05fe84a0876f08df9c19' 
  AND token = 'GeGeEt4aEV4Muhl6gw02kklgbczlDg76yVf3mJvXe4I=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00094

JSON explain

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