Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '316f002f9a7b06a20da026a1b2f852a1f30218b36240faeff7040f42c74dbfdd' 
  AND token = 'HTO5ijBz9gWVT6bQOsrSpiN6RNw8BGCxz3CGx6i5fOU=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00046

JSON explain

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