{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "562857846",
    "entityType": "User",
    "nonce": "0x54b974a699a73cbfec50dec426253709ae09112d6de464192be38bc044d01218",
    "signature": "0xe88e44724cf0c7133214820559a1df4363c2357eaa012293c88dfa24350fe8ed15cb39664fa06f2e559d6ec63db2659ada02391380ed4c790342c6a283fbdb311b",
    "signer": "0x36bc6698D697Dc3869a485812450B1DB1f0a0c04",
    "userId": "400035644"
  }
}