Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '1aad2744130bf2ca1f3bd0ec948e786f2a96199c5d19993756e8163ef33a78ba' 
  AND token = '3JcGbeyNPN+VguHSE5jTAougYmkAyASRy9j0mtlFMFo=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00040

JSON explain

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