Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '630859b04cc99b7675b348925bee643ce08b53fc23d3a61e686b3920da822731' 
  AND token = 'ZbM1YHsRaLgZzBm6VV9Lexpt2YWFisyKdv+Uho35gAE=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00016

JSON explain

{
  "query_block": {
    "select_id": 1,
    "table": {
      "message": "Impossible WHERE noticed after reading const tables"
    }
  }
}