Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '1bb10534a49e860c46c4a77ee78d27900773bc4d7dddfc66650f87e2ccbcbea0' 
  AND token = '2URsaOESJjisITKrLP/GeVrWOkaJXSQLsuBU6/SzHcU=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00031

JSON explain

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