Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'e838e9858423e74557496ca8e7fb56acb24dae41ab25f8b2baa683e23409251e' 
  AND token = 'Ogq30KD8qqfUyUuGyHm/HoDufTTl+0c+9Y5qalxZNo8=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00017

JSON explain

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