Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '2ea8f9c6e10aba462123d1147a440bfc673b840b7377a0246a7a7285415377b1' 
  AND token = 'cIX5ctD2NVXcrssU12FAhKAPzxcU8yM+/VgdIBvbcsA=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00020

JSON explain

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