Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '4588d08d094e6ecd967541b7feb52fe9cb26e30ecd09393fff5e03c22f11859b' 
  AND token = 'and7uDy9o3Jo0hOm8EUVOkmRVYK7E1lMasrf1UOwPwo=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00030

JSON explain

{
  "query_block": {
    "select_id": 1,
    "table": {
      "message": "Impossible WHERE noticed after reading const tables"
    }
  }
}