{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "699855727",
    "entityType": "User",
    "nonce": "0x61c3aba2f06bca147539abb8fa0a43019e087599511caa50d4a622e74b691239",
    "signature": "0x40082dfeaa77431b06b9b4289d9281d32801bcdd51fa66b060b5a29c985b97c54ed55b859b0bdc190b4533792d5bd42016aa600ecf9c47a802e65d0fb59e60b11c",
    "signer": "0x2D566E1DaC6fc148a694abe846B32e39B6584aa5",
    "userId": "890889753"
  }
}