Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '98b01af0e34c70dce700c641d95bb32e9252f427e94fa3676c50dafc1484f254' 
  AND token = 'pBdVbaeE338mgZLW0if7/9o0Ne8vPQv/qIpUx3wUp/g=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00017

JSON explain

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