Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = 'ac111505df8206797c7069f3506f82fff808fe6ab1a6b269584625fd817b15d1' 
  AND token = 'SceKiVMu0aB2VjzJlrDcVPW3/aZ+0Uk6r48EfUWcVC0=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00052

JSON explain

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