Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '5ba0879f988193c642d2baa38e6a3c3c6467b760174adfde67ced9b3b3d75a1f' 
  AND token = 'rdZWRhRpfvdbBX3V0eRtjWA9VQ/95BzSzYvHAtbpc4k=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00049

JSON explain

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