Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '244a434ee1ff4fb8c95ba7059316da31a05eadb82f5656c34e7d15069547877b' 
  AND token = 'P0/6d0fvQIYFm/3uP4YalnHoCq4853vI7N7WJkqrwX8=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00021

JSON explain

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