INSERT INTO cscart_multi_declock_keys (key_id, token, expiry_at) 
VALUES 
  (
    '7c4962e68d327438af87ef6de02817fb9517cb99d58091e027118706bebf444b', 
    'UkQ3VPsMHL7jbTZaFVk8TNPrDArRCwzUZd1ugSKCagI=', 
    UNIX_TIMESTAMP(NOW()) + 300
  )

Query time 0.00025

Result

int(1)