Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'd1d41be11464221c8b2f653f6cbc68112329a9c74757bbb8e82fee9db759485d' 
  AND token = 'R66C9LZ2yLVPAfKZWM1poDtm9NzlvyL3wlNiF9PORks=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00039

JSON explain

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