Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'c3c3f2e6fa88cd8828c4aa62ab69f04bc9490241ea2301db9d02776649f57767' 
  AND token = '+Hkq/KGtWz4BrTB67W1ffe2yVdGMqkFacz+wOj1x3uU=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00016

JSON explain

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