Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '48fda8014606e0db60554f93c7a520ab7101b6c9360b558a51ba7a0edfba5de7' 
  AND token = '7VPNq55yzaqiu3N80QX8LBeREeW9M5IvuHtQT8IW3NU=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00021

JSON explain

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