Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'ee4909a33f87736fcc7f083814f8facfa19c28e3d3259c346980e83ad2eeb932' 
  AND token = 'xJIkTHoqxljnA5qQHTSRDDpuSzbtNxo7qpiFpIPbjsw=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00016

JSON explain

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