{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "200080308",
    "entityType": "User",
    "nonce": "0x21b61a878c41272e2f51753283bb2db5d37394e71f8fa85fe7fa729abbb0d02c",
    "signature": "0x6aceec88eacab3f647e242a0f4194ac637d3ecdf61df9d39290c91a6d41c3a2813c67cee9e21336f0da001a46908a00cc06433211c2ea642d88003bbdf72f6e51b",
    "signer": "0x6A1EE6B6708dc495231852684669f043073D573b",
    "userId": "693641857"
  }
}