Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '7ea2bc29dd432d6f1fe2582229a1df5ad13cb19f5a29d28f2144650b9c73fb67' 
  AND token = 'r0nO0MgBYx13g6EFHf9C7DXHZcrGnyPlHmpce8y6fS0=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00043

JSON explain

{
  "query_block": {
    "select_id": 1,
    "table": {
      "message": "Impossible WHERE noticed after reading const tables"
    }
  }
}