Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '3dcead7ade3c31fa562013667d9b522cbf9a2290bbb7c81ab406fdfa50b10d2c' 
  AND token = '3llw7POR5vluxLvdK/uA6cc/O7RC2Er9bWfGqOaIXTY=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00089

JSON explain

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