{
  "manageEntity": {
    "action": "Save",
    "entityId": "244059397",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x03050a94b581d7ab8efd990a7b524308135526ce2b493462e01e24f70d8bd11e",
    "signature": "0x06ecb761035d926f90b9d600b485058b1fbf06c0ec88eb2e68f66f8a5e164a2766bbc4588376f867105f326c2a1008a29cbb82d3de5b93643ed57aa7da173d931b",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}