Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '8ee286d308741b138ad04de7602e56d085290311b8019785f13a5f72ab30697b' 
  AND token = '8sNOdZO+STpNeXsB3u1vKjYmWcj8q1/tB6m8hsEZdtQ=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00029

JSON explain

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