Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '9805c9b77523d9fdfdab36cc0b0dd20e84d6bcfba594594fbaa69966741959ff' 
  AND token = '7JJC/7NtrUw0CGboaxPHRmk/ytBRabFKPHeZ+8l5dWs=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00018

JSON explain

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