Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '1d008d9ab6d637167f1af7aec86ce35f43f77c9b58be7938dec386edbc7d41af' 
  AND token = 'RmB2mKCEVr5DxgFUXs0x4wcwtJoM5dnPUofvHz9Akac=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00025

JSON explain

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