Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '69e769c8dc6aa521d2fae005947e14a9ae206abfaf4317ee7f826ea304d2796f' 
  AND token = '/X6oyQukCpufnnPIDyoY4Euc9txyo+83oBXAcQZFnTg=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00040

JSON explain

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