Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '5f7ef5871f015ca886668a1a5b29f1fbe93abab20fec7c714f789e8b4b22eeb6' 
  AND token = '5fandfosuWmC0gZChYxjRLJr2FwMsPvqcPZzfwwsKPE=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00026

JSON explain

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