INSERT INTO cscart_multi_declock_keys (key_id, token, expiry_at) 
VALUES 
  (
    '451fee4d67d84efef1388d1e9f604284ccecfbe04f5650218b1e433ba735268a', 
    'eKCVKEclt9/A36L3QWgEqbi/GWknKZHvKu1zFvjD7po=', 
    UNIX_TIMESTAMP(NOW()) + 300
  )

Query time 0.00028

Result

int(1)