Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '59cf692b665c47bb5a2903b84e9a3eb183d92b36a84301f30969265b74c3cd98' 
  AND token = 'zz4xzx6CVi8uHu3qTrjA80n/lvpEeKl84OYwd6OAVkE=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00039

JSON explain

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