Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '7e566e769484737b9b2bf4aa100ccecc44a63a4641f9c6a607dbfe3185366efc' 
  AND token = 'siy2eRXpwSsam9onKo9VaIz8nEHvTCSK/2wwwx7VEMA=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00030

JSON explain

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