Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '7b8dd240f6edb16276ea098b1e9967d959ea126d49d70690e71c16e0dd498c65' 
  AND token = 'XHwJc6J3iX6f7LfuadcX7zuDzZYrquAIxVCyp/iPYaw=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00036

JSON explain

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