Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '9483f31304dacdf6f7f16538bb03aae9151615655dc1a3fca895e0a3f1322ae7' 
  AND token = 'SAiJdVXnSdXImzLdRuzph+f4P/ci4R1VsC8RJ1eKzt4=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00038

JSON explain

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