Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '1192a1926dbe7883918d4a39b1a8815d6d966068bc2c29cb88e8630363759419' 
  AND token = 'znhkyAJ8lUAyFiiP7fVittuCTiN+FAnRNs7T/qPoGKw=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00047

JSON explain

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