Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '78de88b34702bdf0d4d3ab3264693bbe6ac77fb842358bf1acd3a6b8704ab471' 
  AND token = 'wsolqTFppNyhzeZ2V69wNU9u0/cHkM4GLqkNdCJZ8CU=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00029

JSON explain

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