Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '1bb074756bdbdae20a162ce0dc94833a3a66dcf9cdaf1816f64331df56e48efa' 
  AND token = 'vrM17xUpqalUnugjA5/KB7Or1pMzPr/e1V6Jac6gJc4=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00019

JSON explain

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