SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '220e4eab33a20245dc5b8b9b590ae2305d1d56420e009f581cd8a8693ea75060' 
  AND token = 'j3HGIsqmK3gX47bFIGITqVsopzlAu9Jmoo5BQZwKn+g=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00014

JSON explain

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