SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '4ffd529a0e360d2408196157c122ca0c39ba2ba53723970de86851604aef5575' 
  AND token = 'bYfwajbHGNGu78TI2kAxIaJb/ZVmV68VKhEGC8DBX+U=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00025

JSON explain

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