Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'd5b5b43e445d34887482f2289b200cdd671d1f5058f885b3d54445dea27af266' 
  AND token = 'pAeKZw9VP17fcZWl8vCAFAsHJAD/5SqEgNKJaF3ddcQ=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00032

JSON explain

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