Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '4a0fc527a175801d6db0fe5fbeaba2d8fece4bb6355bdffedddf0370a15f7967' 
  AND token = 'aMsHO40apMTMcP6OZUG6adk3xZTggQ0uayNk5DO5WaI=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00019

JSON explain

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