Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '92d20bdb27872c0c56bebabdb9726ab74e41cb96fec87a854244480dc1b23082' 
  AND token = '7Quqn5jmZn5AipXT7cE04PkHvfSN7SY4e5rJvtxT3bw=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00034

JSON explain

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