Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'd85b8a85b668e0ad08c5e6dc7462580f5ab04296d1e00ecf6d8a0a2d5426567e' 
  AND token = 'Qd5nM6P/vzNgI7e5EWUz+J8jbO7b0zDmPLb4e6liIes=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00027

JSON explain

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