INSERT INTO cscart_multi_declock_keys (key_id, token, expiry_at) 
VALUES 
  (
    'b72e702db89fe6ba310c19eda1ed2256d501985e992b18afab044c0a74706b13', 
    '+fOmqBCJR8VQNhuLlVBuoPGhiMH1VGhOqqhN3CB4aSM=', 
    UNIX_TIMESTAMP(NOW()) + 300
  )

Query time 0.00033

Result

int(1)