Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '165e304c961b263e296f3497895ce06576f82bd3b2fbd75b0856f3c73513ffeb' 
  AND token = 'hasGyO2beJG3zsKAtS3W27egVdj4eSpKEw4x4PgaD9c=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00038

JSON explain

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