Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '882ff63454e396b71d3288157becd98f485c6c0199861541cb4e3337ac7b4b4a' 
  AND token = 'W7QDKU2t0ZQK3Qo5EYtEtfY707AOVPlqzjMcWYzn+GA=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00044

JSON explain

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