Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'ea36a5ccc5c84bd16898243da11b2e82800cae6a6ad77622f82afbf0e533eca1' 
  AND token = '7f10+YHcXKAPgKfE7P+MwLiFWyQFDq5zVLDCUiAP940=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00014

JSON explain

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