Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'daee2b5cf85242a145c1372a285123fe429e86d946e4b1938bb7a58ffeae285e' 
  AND token = 'ziGjbOMEsP+GwWjQjy6INyceyI7yDzkPYweOYR55mR0=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00032

JSON explain

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