Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = 'c97a3fdbba80d2a65371aaead9280ea8b8552b5f00fbb954e1fd46cc5fa13322' 
  AND token = '9V0XNKMtHfUa/2lV15HNU6y2hMuSK5KacIm/038UzAs=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00028

JSON explain

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