Sandbox

SELECT 
  1 
FROM 
  cscart_multi_declock_keys 
WHERE 
  key_id = '85a3cdf45440b6b6c920915e2b5b6ca188bf926b026bb293b95be3f88e7e37d6' 
  AND token = 'hY+yJ9ZxIzlwIH6S8eAOIiNZ2eQvzQRHHE4p3jpzXpA=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00033

JSON explain

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