Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '212e9706c35184d7c589cee5d27e33578a143c484229f6c7ede57b2afe9678e3' 
  AND token = 'JKwyMY8b85qd9bMV3TR2cEBHkFPcf1R9OM7PNppQ/k8=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00043

JSON explain

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