Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'be3171e8143d19f6d972a2530d913c5ff90b7b1aaaab478f946be6e5f5ef540e' 
  AND token = 'OQKMZeOaytXY/LrKd81fE4kiebQelJ9jsUZnjjKtKcA=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00024

JSON explain

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