Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '9b29dab98fbda626f1337c94aef4cfd6bdfc6df65f8c1a6f743d57355f06a619' 
  AND token = 'ejfozfTwoyXdKLYM/DOdRfCPrWeaECK0o5EYJitvAe8=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00030

JSON explain

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