Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'dafe27dc9518f2cb4f5a6ce1748792d7c23bb308208be464887461e4e75f3e2f' 
  AND token = 'YNNWNDUoVlN6MxetVgOHqaIimimdoTE0pLuQp21ePjw=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00039

JSON explain

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