Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '36c26e0199efc114feab498d88c9cece57818f4717d3fea1a26f1b1af3cb24ac' 
  AND token = '++SR58Zq7dILXO7/DGcvy85jT9gR9qf2D/v0zaLUY5k=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00031

JSON explain

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