Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'cc89130eb413425ba2825a063b01a45d26ed2fbe8549c137c5bf4af35c46391c' 
  AND token = 'HjwsDiP/NweC9QwtSUqJq8mxlqxCQoMMWgUFuTE8o1o=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00145

JSON explain

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