Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '37f342c69f77a2268209ff100fe9ac9f53a89184a3b59e080760cb1e5a66cd83' 
  AND token = 'XIXYOFLsP3BK4zWGtL4pH1jYR5YjROEzNGc/j5P3T84=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00041

JSON explain

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