Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '32be8afa52283848ee0bb81a58164492d4b2c1ed28c552e894374826d0462dbc' 
  AND token = 'gxzmiPlUw2HvX9HSsbsCVmo4ha736o8W5mL/BKzXPas=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00039

JSON explain

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