Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '0f7524ae446d00223b9f755f4d4976452699cfc378228982858cabe261080f65' 
  AND token = 'zDw17as9sz+9KtLUauiF7gJ7AOHcQscS7QInixAtMF0=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00040

JSON explain

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