Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'e88b15e00d790a08a328fb534bd9471f58822253029531e3e917cc0bcd45ad9a' 
  AND token = 'OZEp0UKEZvk7eM1r8TUmF7DbKN4hVEkWA1Z5jDdjbYw=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00016

JSON explain

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