INSERT INTO cscart_multi_declock_keys (key_id, token, expiry_at) 
VALUES 
  (
    'f8b99975554e9c631213d5219016637d4942dfbb74f5bcf9d46bc2924850fd6f', 
    'Mmrgk04kOwx0ohQLMHWdOO6I3Bp7X2HUfhUe6KKGe+g=', 
    UNIX_TIMESTAMP(NOW()) + 300
  )

Query time 0.00028

Result

int(1)