Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '32694c58532b0747e112948540f98fa81b7d756649be2785f1e3b345b713e64d' 
  AND token = 'DIxWQ0cf/2pgY07LfUSFQ5NnK3NyTvd65ZTNcIn7qrw=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00029

JSON explain

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