Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '613f6ee7345b3dbef75bd8eec4cd4bc6cabae253dfbe5b97e9c64181159b9d07' 
  AND token = 'bON+NGAbuTkrBp00ED4sAA4gKb6Fyj7w0LEjNSybGFk=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00021

JSON explain

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