Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '13a86a13f93399d374c26ec9f7ec91b52fe382b013e21b38e0bca6e37f0653ec' 
  AND token = 'VD4RyTBLWW1v8+S0zrq11sXwu6hcpD6r1VUFYXJ+HcA=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00027

JSON explain

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