Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '61f2614c7bebf8e8787e97999eafc1530d45b0aff15dec103b96e57203d210a5' 
  AND token = 'vzCPYZnUki+MUaayUZZkoUWlIRksurKrZkTr09bsVzE=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00013

JSON explain

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