Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '2d54da6aa6690befbdd8caa712e71edbbcec96a1b7af5c1a55c75d4554ca6c0a' 
  AND token = '7AFfaiUrkReQAzTbgHjWE7i94Ll/qV9jjhelvhcqYic=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00043

JSON explain

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