Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'efe74fb383c955dd826ec4241945a485afe8f3b169feb4feec03099e90a6aebe' 
  AND token = 'dDwOtHv1Yb0/sGCJsJPg4mmk7px6Dm8a/aaGXEAuzuY=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00040

JSON explain

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