Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '697c769aa5ad721e54442ed900619920d56014c60d08f25d8b1f864900e8d619' 
  AND token = 'gJNz4J67/n/iSf2+MNOWbyZZbpWpd+aJFrORH+NnLqA=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00049

JSON explain

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