Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '95897498c3545ab734e2e87f33942f800c1005bdaa6ebde263e229e006b5735e' 
  AND token = '2WHWehSWHdbmtUxXcOuuOjdihuNQyDGMqQArl4Lq9Mc=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00029

JSON explain

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