Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '7e5ce38a55e17f7aa475c7b2ca150907dc8105ca0b0274c119080b555377d619' 
  AND token = 'KYKa/itrZjvxyUv63VzesNVNBgHNFMuiI/J4HKDAAUY=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00032

JSON explain

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