Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '5606e69ef96b796fac8b7ac8989af2ecd0e08fbfa1051fe6e052b78178909297' 
  AND token = '9fQ+N08LakZzN3nQ+AkZyEAMsJsh9OSUac9W6C43E0Q=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00017

JSON explain

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