Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '96364cf18bfad707f4d1b93c4ca38dc40d7d19f07cc2d548d6de92954b94aa9e' 
  AND token = 'B2DkIT599x4uh2tu6wO9ToRrvjvkc9ggZtkkdcvV+nY=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00029

JSON explain

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