Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '113153644a01e79eb4d3cf79d0dae95cb78be8221b0b801df9c1419cf14887b2' 
  AND token = 'mkONoajt6xcd0BNKlODONsZz6FOOWJ9pfqCg05hqkW4=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00040

JSON explain

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