Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'd33c303c067d2ee825d5376df913e6f30102d618b0c1b62ddcf94087013479ff' 
  AND token = 'PA2QFbTo5CxbiuPRp6DJM8Y1GjJA39Hgf0cmHXxOvk8=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00023

JSON explain

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