Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '32baa4652e00525cad334d4ff0b9609ef77b8383431155ea624b2c1f2e713591' 
  AND token = 'HARMglIHdKwStUq9uZbqGVaTdkqrqWXj21pcU2o0WeU=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00032

JSON explain

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