Sandbox

SELECT 
  1 
FROM 
  cscart_june_setuplock_keys 
WHERE 
  key_id = '2301ccea2631989739dc07deabce9a14244d484ca7d8b4f61e6a95901a5fc699' 
  AND token = 'vrC1tpjtpCCHFKiXXSuutXYJH2JBT9NO+FkXlwXqNso=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00032

JSON explain

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