Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '0ca30a70f8d28af846ada4906a2f4559ade82416eac80f178483e60900d41b13' 
  AND token = 'ykuHeK3Q6vQnEBM/GdK/amTjlfjyeTFI+LomdtqgzjI=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00018

JSON explain

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