Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '2bacd9cd1b35f38ed604f1b42e4e4c34344f230ffada5626c881e39980e2aad1' 
  AND token = 'hI7HuuYkDrBsPDcLzOQMlceo6oNN0M6DFR+1auA0L70=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00045

JSON explain

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