Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '47f05734900d44464f03b429e16dd7f2d0ba5bfbfcdc42f319e46d886f047baf' 
  AND token = 'QKHz/yw7hjXuuNAMqCMyl8e/wm/4O9f8VVpop6k4ndA=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00020

JSON explain

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