Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '92629ceb25606d8d91781b429f9a255444d56baf6a00841a63fd68b8641d660d' 
  AND token = 'ZGhtC/kCLMHN0c4DeB0Ofv0UautGK2dEVn0yo/x9p0M=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00021

JSON explain

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