Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '22fa5616614f9435dd831ce2027a384188452cd1f6dbef22efa90cf1e561d4e1' 
  AND token = 'b8pYl7ES5ITWA/C+K6al6/tZgyXecoTvTMn7l/GaNww=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00020

JSON explain

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