INSERT INTO cscart_multi_declock_keys (key_id, token, expiry_at) 
VALUES 
  (
    '12c4ddb2f40841c959d36b8208349d63cf251ee671fad7b825dede0c98c8536f', 
    '6MuElzx3igzi/xxqsou52qGoCw0GpUm6ztRUxz0HwQU=', 
    UNIX_TIMESTAMP(NOW()) + 300
  )

Query time 0.00022

Result

int(1)