Sandbox

SELECT 
  1 
FROM 
  cscart_multi_declock_keys 
WHERE 
  key_id = 'f69f15335bbe4deebbea8fab1e160231ed01a1fc40e26b592df565c039527ec1' 
  AND token = 'ryyIheLA60/FeeP0YXsnsnKo5Oa6uYcKg1bEVlE/OIM=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00029

JSON explain

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