Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '2ccb106a468b6bbed4d4d0632f69462b0bae7c24734e79a3bd053bd37a46a661' 
  AND token = '9FAKRXVq8fCN6U6k4wPxEa6fbDMHlmn0C1U+o4fSnWo=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00040

JSON explain

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