Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '8089fe9d56fbe065ff51f8a533c58ad5c8263fbb9a61d76aab1fba8ad020b3ae' 
  AND token = 'aeUufshcyPcHZntCybKzBuF+wmI1jYh8iZFLtiZuoSU=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00037

JSON explain

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