Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '41136ba2906505ec9961b30724e262ada70858e580e0693c3b5cf83b72e9786c' 
  AND token = 'N03pTKxtCoQ0dcjnr5IUUFx6hN4T9SjVfmljWOl06LA=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00061

JSON explain

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