Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = 'd1b9e217fab3052396cf93ca1a403999e4440efc12f21383ac8da88143a8a3fa' 
  AND token = 'IG0eU+NWwQixdvVa1+8oaShbyVwi1vzt6Db9ivCy7T8=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00046

JSON explain

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