Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'f08e3801bb70cb183b8c46e84a2e43ccb962be98e490cfba175568c568c033f7' 
  AND token = 'h677u7JoUI9bR0+JfZ2RGKlWqaz70f9zdzXDlnG2O/8=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00045

JSON explain

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