SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '418ef41eec6bf4b1074a11d9691595a71ae3183589dbb18fb82c83d59cdd92fe' 
  AND token = '8wK1vpKv6lx+jRyTqbMjgf33+Y9Ji8ETtGQORJPrHs0=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00029

JSON explain

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