{
  "manageEntity": {
    "action": "Save",
    "entityId": "2029774119",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x30e6beb1e4f292a4451b6a6da7fe96b91de26f265c0f8f65fd1f82165b0f25f1",
    "signature": "0x6a7453fdb3d40422687c316fc245082bead9120a3d6f434278f7f5f3dbe3825c76ec25d139b8f9fe7e4f46fc162cddfeea5f1da4ae062b54a2310d01ececa1931b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}