Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '63943e7db75acc26da0d963526bd920ee4a249fdaa85180ed41f6b603a881cf7' 
  AND token = 'Nc+PkVFMhMFkvRw2Ny0b9hEiEZAHW9tAOYiOudAZb0k=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00065

JSON explain

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