{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "71219",
    "entityType": "User",
    "nonce": "0x703c40af74527941036c9fc113241ed43ddaab38657945bfd62a2920a8a2cc9d",
    "signature": "0x8651659caba8f0b57f88d417ea091612cd07f70ef22e6aaf5dcdd2c83dc18fb37a2c84724615cd933bfccfa6f2aa4edceac44c03a95ecf5cc625715dc8bb46a51c",
    "signer": "0x474B8467757bEdBa76afC2394cfCb801C991B143",
    "userId": "815537464"
  }
}