SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = 'c1d925b923f964b69bd7d0445c0a87175395462222af993e48dd923b03da77f2' 
  AND token = 'mKNNIW9CaLUGWT86rzV8w4KqBENRHVRvl9iKcJ4VFds=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00023

JSON explain

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