Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '07c0514cd2f1b3f2d6ff1736b3f58dc5e4213cf153e40632946a2277ac8f73eb' 
  AND token = 'oyRasoZQK5ik7LfdSO/PVKo9bgNfSk1BtoOovlRqZH4=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00054

JSON explain

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