Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '06c1a91fad82013c237c6cb9888489675b44cbf6561a231e2a290c396e61d28b' 
  AND token = 'RuYTpKppiNxAdZ2HmwlRspcAwZgC4cL9Apmeou2kfxk=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00018

JSON explain

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