Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '7aa19b6d0831b74f05958c475d7a643e988c33802f80fadacbf4d0bc04a5d7eb' 
  AND token = 'xcBbim2lepiZckpW0LQ7l0N9dml7K1GI4JoXlSVOOrM=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00028

JSON explain

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