Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '6069ba8e2cd0d4f353556912948dc7344b5d0f806460941b7a05282939199e9e' 
  AND token = 'NHXlc6D6r5KboGHxWtTfrgdR4H5zqUPE2HjxEKm1dEY=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00029

JSON explain

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