INSERT INTO cscart_multi_declock_keys (key_id, token, expiry_at) 
VALUES 
  (
    'd3fafd8a0e899c604e64c99c93912332399f0477e7821e7282713fda1e14db83', 
    'c2vTPkrCE1Ok0oYkrzhZvLWgwUb5afMrM/2F3Ijt0UE=', 
    UNIX_TIMESTAMP(NOW()) + 300
  )

Query time 0.00036

Result

int(1)