Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '58db765d8e100de5e41d59540a68a89da88241036957aca1d2940216ea9f5757' 
  AND token = 'NGyLJypNlVQkEH9iurDW/biUo8JumQWzPeV5dYJO6/0=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00028

JSON explain

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