{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "404",
    "entityType": "User",
    "nonce": "0xe6bef4caf1951a89cdb4970e3d0ed04bbaa05095e02feabd7c3fead40a423b10",
    "signature": "0x5f91ddea06143b52ea7072255de0b2b7fd0b5401eb31ed9890aeab7776e4fe956ba656d81c58bf5b1e21817a69a733b1afae3f047bbfd18e09f3c85e6cf41d7f1b",
    "signer": "0x5fa60F185681545769de01098bB8F29cfbaE3cF0",
    "userId": "489026160"
  }
}