Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '09028b922d09d8355eba7296119ac19599fca880366b58739d4a091ffc9312bb' 
  AND token = 'bHcyj/8mNLMfG0nPNMdMc+vfGvHyeZ49qCUH/RQwuA4=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00023

JSON explain

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