Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = 'ce9280654043b47550f54a7ded1dc360dd962ed0a44135d81664731a91a76daf' 
  AND token = '/7Si+l0t0HOOsAZXl1OHnrMHnn0iAluDJgeruoPwFvY=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00038

JSON explain

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