Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'd13e018462a7b6275e2679f079c1f4e0476485e4e3a45a19b07099b0c4eb1223' 
  AND token = 'NFvJN0u6O0DNku3dUfSxVCyL6g9Qw1YKI/qsuWsuBEs=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00053

JSON explain

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