Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '062a411f744fc90d95a6dd0f0f188e1aac26d3ef85bcc9703e9e70513a1fed9e' 
  AND token = 'hcSZT9w3nHpnFvAH02m+bIoUIiesxrxSK8iVT8SuvLY=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00021

JSON explain

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