Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '0d9de71534818b72e8d248fe9e4012ff9a426dc767418f7793b3da9445f047ee' 
  AND token = 'tHiV3Ylbpj0tn6ZISSSZjIkrpEt2xHPIOeU5jOqXKUg=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00026

JSON explain

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