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SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '9ceb815095095b9a5a7d9c8a8f385a7ff8e72893d64f36bdba6af21fc1038483' 
  AND token = 'az9OvNUpNPuENCC5oRpGG5a5v8JhS3wWm69Q1wBaGdw=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00019

JSON explain

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