Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '90a61b54c0b4646adc55b25adaab406a39ca0ec7aa4ea403d4d9aa6f1c36e6ce' 
  AND token = '9Z5iMkEEshPP+ayclyJW/fF/v0H6LJkpyyb4o/4MjWc=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00040

JSON explain

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