Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '7354f8b15c28fbcb6ac09f79c329d3d56b446cedf7497ce09851bb438da1edcd' 
  AND token = 'F1RtbTPKrS2W79RqyqEQSASJZ9a3iyRA0vra2/BOzA8=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00040

JSON explain

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