Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '36416f37bc5c7ea3cb8d2f825d3add1272bf58628be03c37eb4b21ae96ef7994' 
  AND token = 'ODc9XEZT8wQRUyWzPzBswDCLy7qie0njcGa39pHrBbk=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00034

JSON explain

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